Studio Headphones Αmplifiers

The Way Music is Meant to SoundElevate your listening experience to new heights with ZEO. Hear every nuance of your favorite music like never before.Audiophile conversion in a portable bodyWhen designing ZEO we looked for inspiration no further than the sonic precision found in our best-selling studio units and the warmth and detail of our high-end audiophile converters. Thanks to its high-grade converters, our DAC is capable of delivering authentic and high-fidelity sound everywhere you go.Premium soundon-the-goZEO is the first-of-a-kind product in the ever-growing Antelope Audio portfolio but it continues our legacy of providing pristine sound quality. It’s powered by the same 64-bit Acoustically Focused Clocking technology that is key for the sonic precision of our studio-tier audio interfaces. In combination with the Dual Ricore Amp and 32-bit PCM decoding, ZEO is an audiophile pocket-size gem providing supreme detail, enhanced stereo width, and organic dynamics.Small but versatileWith an impedance kept below 1 Ohm, ZEO is a versatile unit able to drive a vast array of headphones without any loss of audio quality regardless of either the model or the selected file formats. The DSD 128 DoP support ensures that if you’re as fed up with lossy streaming as we are then ZEO will become your all-around friend in reclaiming not just great music but great sound as well.No bridge is too farWindows, iOS, macOS, Android – you name it – ZEO is compatible with the most popular and preferred portable and desktop devices on the market. Designed for plug-and-play use, it can be connected to various devices, allowing you to effortlessly experience its captivating sound in different settings and setups.For the music heads and for the prosZEO is an audiophile-grade DAC packed to its very top with studio-quality technology. This makes it a desired accessory not only for the dedicated music fan but a portable powerhouse well-suited for the needs of musicians and producers working on the go and always on the lookout for studio-quality sound referencing. ZEO was designed and crafted with meticulous care. Manufactured in the EU, each unit was tested to perfection in our HQ to ensure flawless quality and performance.

The headphone amplifier, monitoring controller and DAC with 120V technology Phonitor 3 DAC is not only the ultimate headphone amplifier and monitoring controller with 120V technology – the integrated DAC makes it the perfect monitoring centerpiece for demanding producers as well as sound and mastering engineers working with digital sources or in the DAW.Whether if USB, AES/EBU or S/PDIF – the integrated DAC with analog SLP120 converts digital PCM audio signals with a resolution of 32 bit and a sampling rate of up to 768 kHz. It converts DSD signals with a resolution of up to DSD256.On the analog side, the Phonitor 3 DAC, based on the SPL 120V technology, offers the same monitoring quality as the big SPL mastering consoles – on loudspeakers and headphones.The analog Phonitor Matrix allows mixing and mastering on headphones in the highest quality – with the same spatial perception of the stereo stage as on loudspeakers.Great sound – for headphonesThe Phonitor 3 offers connection for a standard headphone with a stereo jack plug on the front. Thanks to the enormous output power, all kind of headphones are driven effortlessly. Thus, it plays out the advantages of the SPL 120V technology and rewards the listener with an honest, detailed and at the same time vivid sound experience.Great sound – also for loudspeakersOn the rear of the device, Phonitor 3 offersa stereo output which makes it a high-qualitymonitoring controller for any monitoring situation. Active speakers with an integrated power amplifieror passive speakers in combination with a power amplifier can be connected at this output.Monitoring at the highest levelPhonitor 3 offers the same key technology –SPL 120V technology – and signal quality as thebig SPL DMC and MMC mastering consoles.

Premium DAC with VOLTAiR technologyDiamond is the perfect DAC and preamplifier for everyone who plays music exclusively from digital sources. Diamond offers connectivity for six digital sources and an external word clock. The superior VOLTAiR technology and the premium DAC with the unequalled DLP120 combined with an analog volume control allowing for highest resolution at any volume makes the Diamond an one-of-a-kind DA converter that delivers finest soundstages with an unrivalled analog feel.Everything under controlThe volume is adjusted with a solid, milled aluminum, rotary knob. The Alps RK27 “Big Blue” potentiometer gives a pleasant “spoon in the honey” rotary feel.Source of joyUp to 6 digital stereo sources can be connected to Diamond.Diamond offers each a stereo USB and AES input as well as each two optical and coaxial stereo inputs. Via USB, both PCM audio and DSD audio can be converted. PCM audio is received in S/PDIF format, both coaxial (RCA), optical (Toslink F06) and balanced (AES/EBU). The source selection is done via the selection control on the front. The selected input is also shown in the dot matrix LED display: USB, COA1, COA2, OPT1, OPT2 or AES. After approximately two seconds, the display shows the type of clock source and the detected sampling rate.Always in timeDiamond can not only synchronize to the clock integrated in the digitally fed source signal. As a specialist for digital players Diamond offers a word clock input. The source of the clock signal can be selected via the CLOCK switch.Source = Diamond synchronizes to the digital clock in the source signal.Word = Diamond synchronizes to the digital clock present at WORD IN.Well informedThe DAC automatically picks up the sampling rate and resolution of the digital playback source. No matter if a streamer, computer, CD player or an external word clock is connected. The detected sampling rate and the selected clock source are shown in the dot matrix LED display. For example, U768 is an acronym for a clock signal in the USB stream with a sampling rate of 768 kHz.All variable – or Slave ThruDiamond provides two stereo output pairs for connecting power amplifiers or active loudspeakers. One pair of outputs with XLR, the other with RCA outputs. Both have the same output signal, which is controlled by the volume control on the front panel. The volume control for both outputs can be individually switched out of the signal path via DIP switch on the back of the device. For example, a headphone amplifier with its own volume control can be connected to one of the outputs.The DAC768The highly acclaimed AKM AK4490 Velvet Sound™ premium DAC chip is used as the converter chip in the digital-to-analogue converter, which thanks to its architecture reproduces the finest sound details.It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768 kHz, which is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to a resolution of DSD4 or DSD256. In contrast to the DAC 768xs, the DAC768 not only offers an AES/EBU digital input, but also the SPL DLP120 with VOLTAiR technology.The DLP120 (Dual Low-Pass)The analog output of the DAC chip must be filtered by a low pass filter. Phonitor xe has two of them: One for PCM audio and one for DSD audio, since different roll-off frequencies are required.In contrast to all other DACs in the world, the low pass filters here are built using VOLTAiR technology, which provides a plus in dynamics and headroom and sound.Sounds goodWith all devices of the Professional Fidelity series we develop not only according to plan, but also by ear. Many important components are installed on the circuit boards using Through-hole technology. This way we can ensure that we can use the best sounding components.The VOLTAiR TechnologyThe 120V technology is our reference technology. The 120V technology is unique in the world. It operates at a DC voltage of 120 volts. This is four times that of IC-based semiconductor op-amps. In our Professional Fidelity series, we refer to this unsurpassed technology as VOLTAiR technology.The highest possible audio quality requires the highest possible audio operating voltageThe 120V technology works with +/-60 V. To be able to handle such a high voltage, we have developed special proprietary operational amplifiers that can operate with a DC voltage of +/-60 V: the SPL 120V SUPRA operational amplifiers. This high voltage would destroy conventional components and operational amplifiers.The 120V technology achieves exceptional technical specifications and sonic benefits. Technically, in terms of dynamic range, signal-to-noise ratio and headroom. Sonically, in terms of richness of detail and an absolutely relaxed listening experience. By the way, the “120V” in the name of the technology has nothing to do with the local mains voltage from the mains power socket. This is about the operating voltage inside the device with which the audio signals are processed.The mains voltage from the mains power socket is transformed to the required secondary voltage in the device’s internal linear power supply with toroidal transformer. Rectifiers convert this AC voltage into DC voltage required in the audio device.VOLTAiR is a composition of the terms Volt and Air. Volt is the unit for electrical voltage and Air stands for the unlimited space the music can breathe in. It symbolizes the perceived limitless dynamics resulting from high audio voltage.ComparisonMost audio devices work with an internal operating voltage of +/-15 volts and can thus process a maximum input level of +21.5 dBu. If a DAC, for example, has an output level of +22 dBu at 0 dBFS, level peaks of the music material would already cause overloads in the input stage of the device. All components in the audio device often operate at their limits. The result is an unsteady sound that causes stress and faster ear fatigue.SPL devices with VOLTAiR technology can handle input levels of +32.5 dBu thanks to the higher internal operating voltage of +/- 60 volts – thus offering 12 dB more headroom. All components consequently operate continuously in the optimum operating range. The result is a very pleasant, natural and relaxed sound experience. So you can enjoy your music in every detail.

Premium DAC with VOLTAiR technologyDiamond is the perfect DAC and preamplifier for everyone who plays music exclusively from digital sources. Diamond offers connectivity for six digital sources and an external word clock. The superior VOLTAiR technology and the premium DAC with the unequalled DLP120 combined with an analog volume control allowing for highest resolution at any volume makes the Diamond an one-of-a-kind DA converter that delivers finest soundstages with an unrivalled analog feel.Everything under controlThe volume is adjusted with a solid, milled aluminum, rotary knob. The Alps RK27 “Big Blue” potentiometer gives a pleasant “spoon in the honey” rotary feel.Source of joyUp to 6 digital stereo sources can be connected to Diamond.Diamond offers each a stereo USB and AES input as well as each two optical and coaxial stereo inputs. Via USB, both PCM audio and DSD audio can be converted. PCM audio is received in S/PDIF format, both coaxial (RCA), optical (Toslink F06) and balanced (AES/EBU). The source selection is done via the selection control on the front. The selected input is also shown in the dot matrix LED display: USB, COA1, COA2, OPT1, OPT2 or AES. After approximately two seconds, the display shows the type of clock source and the detected sampling rate.Always in timeDiamond can not only synchronize to the clock integrated in the digitally fed source signal. As a specialist for digital players Diamond offers a word clock input. The source of the clock signal can be selected via the CLOCK switch.Source = Diamond synchronizes to the digital clock in the source signal.Word = Diamond synchronizes to the digital clock present at WORD IN.Well informedThe DAC automatically picks up the sampling rate and resolution of the digital playback source. No matter if a streamer, computer, CD player or an external word clock is connected. The detected sampling rate and the selected clock source are shown in the dot matrix LED display. For example, U768 is an acronym for a clock signal in the USB stream with a sampling rate of 768 kHz.All variable – or Slave ThruDiamond provides two stereo output pairs for connecting power amplifiers or active loudspeakers. One pair of outputs with XLR, the other with RCA outputs. Both have the same output signal, which is controlled by the volume control on the front panel. The volume control for both outputs can be individually switched out of the signal path via DIP switch on the back of the device. For example, a headphone amplifier with its own volume control can be connected to one of the outputs.The DAC768The highly acclaimed AKM AK4490 Velvet Sound™ premium DAC chip is used as the converter chip in the digital-to-analogue converter, which thanks to its architecture reproduces the finest sound details.It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768 kHz, which is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to a resolution of DSD4 or DSD256. In contrast to the DAC 768xs, the DAC768 not only offers an AES/EBU digital input, but also the SPL DLP120 with VOLTAiR technology.The DLP120 (Dual Low-Pass)The analog output of the DAC chip must be filtered by a low pass filter. Phonitor xe has two of them: One for PCM audio and one for DSD audio, since different roll-off frequencies are required.In contrast to all other DACs in the world, the low pass filters here are built using VOLTAiR technology, which provides a plus in dynamics and headroom and sound.Sounds goodWith all devices of the Professional Fidelity series we develop not only according to plan, but also by ear. Many important components are installed on the circuit boards using Through-hole technology. This way we can ensure that we can use the best sounding components.The VOLTAiR TechnologyThe 120V technology is our reference technology. The 120V technology is unique in the world. It operates at a DC voltage of 120 volts. This is four times that of IC-based semiconductor op-amps. In our Professional Fidelity series, we refer to this unsurpassed technology as VOLTAiR technology.The highest possible audio quality requires the highest possible audio operating voltageThe 120V technology works with +/-60 V. To be able to handle such a high voltage, we have developed special proprietary operational amplifiers that can operate with a DC voltage of +/-60 V: the SPL 120V SUPRA operational amplifiers. This high voltage would destroy conventional components and operational amplifiers.The 120V technology achieves exceptional technical specifications and sonic benefits. Technically, in terms of dynamic range, signal-to-noise ratio and headroom. Sonically, in terms of richness of detail and an absolutely relaxed listening experience. By the way, the “120V” in the name of the technology has nothing to do with the local mains voltage from the mains power socket. This is about the operating voltage inside the device with which the audio signals are processed.The mains voltage from the mains power socket is transformed to the required secondary voltage in the device’s internal linear power supply with toroidal transformer. Rectifiers convert this AC voltage into DC voltage required in the audio device.VOLTAiR is a composition of the terms Volt and Air. Volt is the unit for electrical voltage and Air stands for the unlimited space the music can breathe in. It symbolizes the perceived limitless dynamics resulting from high audio voltage.ComparisonMost audio devices work with an internal operating voltage of +/-15 volts and can thus process a maximum input level of +21.5 dBu. If a DAC, for example, has an output level of +22 dBu at 0 dBFS, level peaks of the music material would already cause overloads in the input stage of the device. All components in the audio device often operate at their limits. The result is an unsteady sound that causes stress and faster ear fatigue.SPL devices with VOLTAiR technology can handle input levels of +32.5 dBu thanks to the higher internal operating voltage of +/- 60 volts – thus offering 12 dB more headroom. All components consequently operate continuously in the optimum operating range. The result is a very pleasant, natural and relaxed sound experience. So you can enjoy your music in every detail.

Premium DAC with VOLTAiR technologyDiamond is the perfect DAC and preamplifier for everyone who plays music exclusively from digital sources. Diamond offers connectivity for six digital sources and an external word clock. The superior VOLTAiR technology and the premium DAC with the unequalled DLP120 combined with an analog volume control allowing for highest resolution at any volume makes the Diamond an one-of-a-kind DA converter that delivers finest soundstages with an unrivalled analog feel.Everything under controlThe volume is adjusted with a solid, milled aluminum, rotary knob. The Alps RK27 “Big Blue” potentiometer gives a pleasant “spoon in the honey” rotary feel.Source of joyUp to 6 digital stereo sources can be connected to Diamond.Diamond offers each a stereo USB and AES input as well as each two optical and coaxial stereo inputs. Via USB, both PCM audio and DSD audio can be converted. PCM audio is received in S/PDIF format, both coaxial (RCA), optical (Toslink F06) and balanced (AES/EBU). The source selection is done via the selection control on the front. The selected input is also shown in the dot matrix LED display: USB, COA1, COA2, OPT1, OPT2 or AES. After approximately two seconds, the display shows the type of clock source and the detected sampling rate.Always in timeDiamond can not only synchronize to the clock integrated in the digitally fed source signal. As a specialist for digital players Diamond offers a word clock input. The source of the clock signal can be selected via the CLOCK switch.Source = Diamond synchronizes to the digital clock in the source signal.Word = Diamond synchronizes to the digital clock present at WORD IN.Well informedThe DAC automatically picks up the sampling rate and resolution of the digital playback source. No matter if a streamer, computer, CD player or an external word clock is connected. The detected sampling rate and the selected clock source are shown in the dot matrix LED display. For example, U768 is an acronym for a clock signal in the USB stream with a sampling rate of 768 kHz.All variable – or Slave ThruDiamond provides two stereo output pairs for connecting power amplifiers or active loudspeakers. One pair of outputs with XLR, the other with RCA outputs. Both have the same output signal, which is controlled by the volume control on the front panel. The volume control for both outputs can be individually switched out of the signal path via DIP switch on the back of the device. For example, a headphone amplifier with its own volume control can be connected to one of the outputs.The DAC768The highly acclaimed AKM AK4490 Velvet Sound™ premium DAC chip is used as the converter chip in the digital-to-analogue converter, which thanks to its architecture reproduces the finest sound details.It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768 kHz, which is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to a resolution of DSD4 or DSD256. In contrast to the DAC 768xs, the DAC768 not only offers an AES/EBU digital input, but also the SPL DLP120 with VOLTAiR technology.The DLP120 (Dual Low-Pass)The analog output of the DAC chip must be filtered by a low pass filter. Phonitor xe has two of them: One for PCM audio and one for DSD audio, since different roll-off frequencies are required.In contrast to all other DACs in the world, the low pass filters here are built using VOLTAiR technology, which provides a plus in dynamics and headroom and sound.Sounds goodWith all devices of the Professional Fidelity series we develop not only according to plan, but also by ear. Many important components are installed on the circuit boards using Through-hole technology. This way we can ensure that we can use the best sounding components.The VOLTAiR TechnologyThe 120V technology is our reference technology. The 120V technology is unique in the world. It operates at a DC voltage of 120 volts. This is four times that of IC-based semiconductor op-amps. In our Professional Fidelity series, we refer to this unsurpassed technology as VOLTAiR technology.The highest possible audio quality requires the highest possible audio operating voltageThe 120V technology works with +/-60 V. To be able to handle such a high voltage, we have developed special proprietary operational amplifiers that can operate with a DC voltage of +/-60 V: the SPL 120V SUPRA operational amplifiers. This high voltage would destroy conventional components and operational amplifiers.The 120V technology achieves exceptional technical specifications and sonic benefits. Technically, in terms of dynamic range, signal-to-noise ratio and headroom. Sonically, in terms of richness of detail and an absolutely relaxed listening experience. By the way, the “120V” in the name of the technology has nothing to do with the local mains voltage from the mains power socket. This is about the operating voltage inside the device with which the audio signals are processed.The mains voltage from the mains power socket is transformed to the required secondary voltage in the device’s internal linear power supply with toroidal transformer. Rectifiers convert this AC voltage into DC voltage required in the audio device.VOLTAiR is a composition of the terms Volt and Air. Volt is the unit for electrical voltage and Air stands for the unlimited space the music can breathe in. It symbolizes the perceived limitless dynamics resulting from high audio voltage.ComparisonMost audio devices work with an internal operating voltage of +/-15 volts and can thus process a maximum input level of +21.5 dBu. If a DAC, for example, has an output level of +22 dBu at 0 dBFS, level peaks of the music material would already cause overloads in the input stage of the device. All components in the audio device often operate at their limits. The result is an unsteady sound that causes stress and faster ear fatigue.SPL devices with VOLTAiR technology can handle input levels of +32.5 dBu thanks to the higher internal operating voltage of +/- 60 volts – thus offering 12 dB more headroom. All components consequently operate continuously in the optimum operating range. The result is a very pleasant, natural and relaxed sound experience. So you can enjoy your music in every detail.

The headphone amplifier, monitoring controller and DAC with 120V technology Phonitor 3 DAC is not only the ultimate headphone amplifier and monitoring controller with 120V technology – the integrated DAC makes it the perfect monitoring centerpiece for demanding producers as well as sound and mastering engineers working with digital sources or in the DAW. Whether if USB, AES/EBU or S/PDIF – the integrated DAC with analog SLP120 converts digital PCM audio signals with a resolution of 32 bit and a sampling rate of up to 768 kHz. It converts DSD signals with a resolution of up to DSD256. On the analog side, the Phonitor 3 DAC, based on the SPL 120V technology, offers the same monitoring quality as the big SPL mastering consoles – on loudspeakers and headphones. The analog Phonitor Matrix allows mixing and mastering on headphones in the highest quality – with the same spatial perception of the stereo stage as on loudspeakers.Great sound – for headphonesThe Phonitor 3 DAC offers connection for a standard headphone with a stereo jack plug on the front. Thanks to the enormous output power, all kind of headphones are driven effortlessly. Thus, it plays out the advantages of the SPL 120V technology and rewards the listener with an honest, detailed and at the same time vivid sound experience.Great sound – also for loudspeakersOn the rear of the device, Phonitor 3 DAC offers a stereo output which makes it a high-quality monitoring controller for any monitoring situation. Active speakers with an integrated power amplifier or passive speakers in combination with a power amplifier can be connected at this output.Monitoring at the highest levelPhonitor 3 DAC offers the same key technology – SPL 120V technology – and signal quality as the big SPL DMC and MMC mastering consoles.Headphones or SpeakersThe Output switch – simply switch from headphone to speaker playback. In the center position (Mute), no signal reaches the outputs. The VU meters light up red.Digital & analog stereo inputs – free choiceUp to six stereo sources can be connected to the Phonitor 3 DAC. The source is selected via the Source switch.Analog inputsOn the analog side, two analog stereo inputs are offered, each with two XLR line inputs. Professional analog players with balanced outputs and line level can be connected here.Digital inputsOn the digital side, the Phonitor 3 DAC offers four digital stereo inputs.USBThe USB input (type B) can be used to directly connect the DAW. No driver installation is required for operation with a Mac or an iDevice. Via USB, the Phonitor 3 DAC converts PCM audio signals with a resolution of 32 bits and a sampling rate of up to 768 kHz as well as DSD signals with a resolution of up to DSD256.S/PDIF, coaxialThe Input S/PDIF coaxial can also receive a two-channel signal (PCM audio) with sampling rates up to 192 kHz and a bit rate of 16 bits to 24 bits. Unbalanced, 2-wire 75-ohm coaxial cables with RCA connectors are used for signal transmission.S/PDIF, opticalThe S/PDIF optical input can also receive a two-channel signal (PCM audio) with sampling rates of up to 192 kHz and a bit rate of 16 bit to 24 bit. The input jack is an F05 jack. This interface is better known under the Toshiba brand name TOSLINK.Tip: You should attach importance to the quality of the optical fiber. With inexpensive plastic optical fibers, transmissions with quad sampling rates (176.4kHz/192kHz) may have faults. In this case a glass fiber optic cable should be chosen.AES/EBUThe AES input provides an input jack which corresponds to a standard XLR input (XLR, female). An AES signal can transport two encoded PCM audio channels with a maximum sampling rate of 192 kHz and a bit rate of 16 bits to 24 bits. This standard is defined under IEC 60958 Type I. Balanced, 3-core, 110 Ohm “twisted pair” cables with XLR plugs are used for connection.The DAC – the best is just good enoughThe converter chip in the Phonitor 3 DAC´s digital-to-analog converter is the highly acclaimed AKM AK4490 Velvet Sound™ premium DAC chip, which thanks to its architecture reproduces the finest sound details. It converts PCM audio at 32-bit resolution and a sampling rate of up to 768 kHz, which is 16 times the resolution of a CD. Direct Stream Digital is also supported up to a resolution of DSD4 or DSD256.SLP120The analog output of any DAC chip must be filtered by a low pass filter when entering the analog world. In contrast to all other DACs in the world, the low pass filters here are built using SPL 120V technology, which provides a plus in dynamics and headroom and sound. The DAC in the Phonitor 3 DAC is equipped with the SLP120 – an analog “single low pass” filter with 120V technology.Milled from solidThe massive 45mm volume control knob milled from aluminum is a haptic highlight. Its mass together with the Alps RK27 “Big Blue” potentiometer enhances the “spoon in the honey” feeling even further and provides perfect control of the monitoring level.Monitoring without any compromisesThe Phonitor 3 DAC is a full-fledged monitor controller:Source selectionPhonitor Matrix with Crossfeed, Speaker Angle and Center Level (the latter can be switched off)Mono/StereoLaterality controlSolo L/RPhase inversion for L and RL/R SwapOutput switchable to headphones or speakersMuteMono or stereo – a matter of settingThe Mono/Stereo switch can be used to select whether the output signal of the Phonitor 3 DAC is a regular stereo signal or whether it is summed to a mono signal.Finding the real centerNaturally, hearing can be directed more to the left or more to the right. This becomes particularly clear when listening on headphones. Therefore, the Phonitor 3 DAC has the uniquely finely resolved laterality control, which rebalances the stereo image on the monitoring side. The Mono/Stereo switch can not only be used to switch between stereo or mono playback. This switch is also used to activate or deactivate the laterality control.Solo L/ROnly the right or left channel of the audio signal should be played back? The Solo L/R function makes it possible. If the triple selection switch is in the “L” position, only the left channel is played back – if it is in the “R” position, only the right channel is played back. In the middle position “Off” the Solo function is switched off. The regular stereo signal consisting of the left and right channel is thus present at the output of the Phonitor 3 DAC.L/R SwapA special feature is the channel swap function: L/R Swap. This function inverts the stereo image. Left becomes right and right becomes left. This is especially important and extremely time-saving, when you are monitoring samples in video dubbing that should match a scene with direction of movement. If the direction is not correct, you usually have to load the sample into the DAW to switch channels. before you can judge whether the sample matches the image. With the L/R Swap function, this is no longer necessary. You can now adjust the direction of movement on the Phonitor 3 DAC while pre-listening the sample library.Phase inversion for L and RWith this switch the phase of the left or right channel of the audio signal can be inverted. If the three-way selection switch is in the “L” position, the left channel is inverted – if it is in the “R” position, the right channel is inverted. In the middle position “Off” this function is switched off. At the output of the Phonitor 3 DAC the regular stereo signal is thus present.M/S – Mid or Side?By using the mono/stereo and L/R phase inversion switch in combination, it is also possible to only monitor the mid or side signal. When the switch is set to “Mono” and phase inversion is active for L (or R), only the side signal is played back. If the phase inversion is switched off, the mono signal corresponding to the “M” signal is played back. Separate monitoring of the M and S signals has become a widespread standard for many mixing and mastering engineers.Everything at a glanceTwo mechanical VU meters visualize the input levels for the left and right audio channels. The “VU Cal” switch can be used to reduce the signal visualized on the VU meters by -6 dB or -12 dB. Thus, the VU meters operate in the ideal display range even at very high input levels.The Revolution: Phonitor MatrixThe Phonitor Matrix is the revolution in the headphone amplifier.One of the unique features of SPL headphone amplifiers is the SPL Phonitor Matrix. It enables mixing and mastering engineers to create perfect mixes on headphones, which will translate perfectly to all types of stereo speaker systems. But the Phonitor Matrix is not only designed for professional use in the studio. It also enables the hifi enthusiast to enjoy music on headphones, like if it was played back on speakers.How is this possible?Music is normally produced and mixed for playback on stereo speakers. Listening on headphones is different from listening on loudspeakers. The biggest difference is the lack of crossing signals of the sound signal from the left speaker to the right ear and from the right speaker to the left ear.These crossing signals are missing in conventional headphone listening, because there are no signals crossing from one side of the headphones to the other. This results in an unnaturally wide stereo stage and sound sources are not played back at their actual position in the stereo spectrum. The SPL Phonitor Matrix can correct this false stereo image with an analog circuitry.Summed up:The SPL Phonitor Matrix corrects the false representation of the stereo sound image, which makes it much easier to find the right decisions for mixing and mastering engineers. The hifi enthusiast can experience the music, like it was originally mixed and recorded. So nothing stands in the way of a successful and long mixing session on headphones.Preamp Out or Direct OutWith a DIP switch on the rear of the device, the volume control for the rear stereo output can be switched out of the signal path. But that’s not all. It is also possible to output the Phonitor Matrix to the stereo output on the rear panel of the device – regardless of whether this is configured as Preamp Out (with volume control) or Direct Out (without volume control).More powerIf headphones have a rather low sensivity – no problem. With DIP switch 1 on the rear of the device, the level at the headphone output can be increased by 12 dB.Sounds goodWith all SPL devices we develop not only according to plan, but also by ear. All important components are installed on the circuit boards using Through-hole technology. This way we can ensure that we can use the best sounding components.The 120V technologyThe 120V technology is our reference technology. The 120V technology is unique in the world. It operates at a DC voltage of 120 volts. This is four times that of IC-based semiconductor op-amps.

Liberty DAC is the Mytek most affordable, yet exceptional, PCM/MQA/DSD USB2 DAC designed for high quality music playback and monitoring of all digital audio formats including all high resolution formats. The DAC features several digital inputs, digital volume control and unbalanced as well as balanced audio outputs and a high performance headphone amplifier. Designed as a little brother of Brooklyn DAC, Liberty DAC provides robust performance in small portable 1/3 rack package.

With innovative Phonitor Matrix, 32-bit DA-converter and outstanding sound quality. For us the sound is always in the foreground. When it sounds good, we like to listen. To get such a sound, you need experience and technical finesse. We have incorporated both into the Series One. The Preamplifier Stage Two Burr-Brown OPA 2134 SoundPlus™ operational amplifiers provide the pre-amplification. These are specially designed for audiophile circuits and are characterized by extremely low noise and minimal distortion of only 0.00008%.Thanks to a true FET stage, the OPA 2134 achieves a slew rate of 20V/µs, making it a high-speed operational amplifier. This has an immediate positive effect on the liveliness of the playback. In addition, low capacitance film capacitors are installed in the signal path as bypass capacitors of the coupling capacitors, which ensures a more precise transmission of the high-frequency signal components.The excellent Panasonic ‘Electric Double Layer’ gold electrolytic capacitors are used as coupling capacitors. They offer the highest storage capacity of all capacitor technologies.

For us the sound is always in the foreground. When it sounds good, we like to listen. To get such a sound, you need experience and technical finesse. We have incorporated both into the Series One. The Design Of The Amplification Stages Two Burr-Brown OPA 2134 SoundPlus™ operational amplifiers provide the pre-amplification. These are specially designed for audiophile circuits and are characterized by extremely low noise and minimal distortion of only 0.00008%. Thanks to a true FET stage, the OPA 2134 achieves a slew rate of 20V/µs, making it a high-speed operational amplifier. This has an immediate positive effect on the liveliness of the playback. In addition, low capacitance film capacitors are installed in the signal path as bypass capacitors of the coupling capacitors, which ensures a more precise transmission of the high-frequency signal components. The excellent Panasonic ‘Electric Double Layer’ gold electrolytic capacitors are used as coupling capacitors. They offer the highest storage capacity of all capacitor technologies.

Our nonplusultra headphone amplifier.The Phonitor xe is the nonplusultra standalone headphone amplifier without any compromises. Phonitor Matrix, remote volume control, retro-look VU meter, the optional premium DA converter and the all-superior VOLTAiR technology make the Phonitor xe one of the best headphone amplifiers of our time.Great Sound – for all headphonesThe Phonitor xe offers connections for a standard headphone with a stereo jack plug and for balanced-driven headphones using a 4 pin XLR plug.Thanks to the enormous output power, all headphones are driven effortlessly.Thus, it plays out the advantages of the SPL VOLTAiR technology and rewards the listener with an honest, detailed and at the same time vivid sound experience.Twice as niceThe Phonitor xe provides headphone outputs on the front and on the rear. On the front, you switch between F (front) and R (rear). This way, your favorite headphones remain firmly connected on the rear – without visible cabling on the front.Milled from solidThe massive 45mm volume control knob milled from aluminum is a haptic highlight. Its mass together with the motorized Alps RK27 “Big Blue” potentiometer enhances the “spoon in the honey” feeling even further.The red marker LED ensures good visibility of the volume parameter even in darkened environments.Remote controlThe volume control can be remotely controlled with any infrared remote control.The Phonitor xe learns to communicate with it with the simple push of a button.Learning made easyUsing Phonitor x as an example, this video explains how you can use any infrared remote control to remotely control the volume.Source of joyUp to six (6 !) stereo sources can be connected to the Phonitor xe:XLR, RCA and via the optional DAC768 also USB, COAX, OPTICAL and AES.Phonitor xe accepts almost all audio connections. Balanced via XLR or unbalanced via RCA connectors.With the optional DAC768, four additional digital sources are added. From USB to professional AES format, no wishes remain unfulfilled.The DAC automatically picks up the sampling rate and resolution of the digital playback source. No matter if a streamer, computer or CD player is connected. No further settings on the Phonitor xe are necessary.The DAC768The highly acclaimed AKM AK4490 Velvet Sound™ premium DAC chip is used as the converter chip in the optional digital-to-analogue converter, which thanks to its architecture reproduces the finest sound details.It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768 kHz, which is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to a resolution of DSD4 or DSD256. In contrast to the DAC 768xs, the DAC768 not only offers an AES/EBU digital input, but also the SPL DLP120 with VOLTAiR technology.The DLP120 (Dual Low-Pass)The analog output of the DAC chip must be filtered by a low pass filter. Phonitor xe has two of them: One for PCM audio and one for DSD audio, since different roll-off frequencies are required.In contrast to all other DACs in the world, the low pass filters here are built using VOLTAiR technology, which provides a plus in dynamics and headroom and sound.Good ol' timesTwo mechanical VU meters visualize the input levels for the left and right audio channel.With the VU switch you can optimize the display for different signal levels.Finding the middleis not always easy. By our very nature, hearing can be leaning more to the left or more to the right. This is especially obvious when listening with headphones.That’s why Phonitor xe has the uniquely finely resolved laterality control. With it, the center can be found perfectly.With the MODE switch you can choose between stereo or mono playback. This switch also activates the laterality control.The Revolution: Phonitor MatrixThe Phonitor Matrix is the revolution in the headphone amplifier.Thanks to the Phonitor Matrix, music can be experienced on headphones as if it was played on speakers. The tiring super stereo effect is a thing of the past.Enjoy your music without listening fatigue and exactly the way it should be heard.Music is normally produced and mixed for playback on stereo speakers.Listening on headphones is different from listening on loudspeakers. The biggest difference is the lack of crossing signals of the sound signal from the left speaker to the right ear and from the right speaker to the left ear. These crossing signals are missing in conventional headphone listening, because there are no signals crossing from one side of the headphones to the other. This results in an unnaturally wide stereo image and the various sound sources of the audio signal are not localized as the sound engineer intended them to. This effect is often referred to as “super stereo effect”. During conventional listening on headphones, our brain can balance the false representation of the playback to a certain extent – but this is very exhausting.The SPL Phonitor Matrix can correct this false stereo image with an analog circuitry. The Phonitor Matrix therefore not only ensures a correct representation of the stereo image, but also a relaxed listening experience.The two main parameters of the Phonitor Matrix are Crossfeed and Angle:Crossfeed determines the crossing signals of the channels, the so-called interaural level difference.Angle determines the opening angle of the stereo image, the so-called interaural time difference.Center of AttentionTo make the listening experience even more perfect, the level of the center of the stereo image needs to be attenuated when the Phonitor Matrix is active. This ensures that not only the position of all sound sources is correct but also their volume.In the Professional Fidelity Phonitor devices this value is set to a fixed attenuation of -1 dB, which is the best choice for getting an authentic representation of the sound stage.Sounds good!With all devices of the Professional Fidelity series we develop not only according to plan, but also by ear. All important components are installed on the circuit boards using Through-hole technology. This way we can ensure that we can use the best sounding components.The VOLTAiR TechnologyThe 120V technology is our reference technology. The 120V technology is unique in the world. It operates at a DC voltage of 120 volts. This is four times that of IC-based semiconductor op-amps. In our Professional Fidelity series, we refer to this unsurpassed technology as VOLTAiR technology.The highest possible audio quality requires the highest possible audio operating voltage.The 120V technology works with +/-60 V. To be able to handle such a high voltage, we have developed special proprietary operational amplifiers that can operate with a DC voltage of +/-60 V: the SPL 120V SUPRA operational amplifiers. This high voltage would destroy conventional components and operational amplifiers.By the way, the “120V” in the name of the technology has nothing to do with the local mains voltage from the mains power socket. This is about the operating voltage inside the device with which the audio signals are processed.The mains voltage from the mains power socket is transformed to the required secondary voltage in the device’s internal linear power supply with toroidal transformer. Rectifiers convert this AC voltage into DC voltage required in the audio device.

Our nonplusultra headphone amplifier.The Phonitor xe is the nonplusultra standalone headphone amplifier without any compromises. Phonitor Matrix, remote volume control, retro-look VU meter, the optional premium DA converter and the all-superior VOLTAiR technology make the Phonitor xe one of the best headphone amplifiers of our time.Great Sound – for all headphonesThe Phonitor xe offers connections for a standard headphone with a stereo jack plug and for balanced-driven headphones using a 4 pin XLR plug.Thanks to the enormous output power, all headphones are driven effortlessly.Thus, it plays out the advantages of the SPL VOLTAiR technology and rewards the listener with an honest, detailed and at the same time vivid sound experience.Twice as niceThe Phonitor xe provides headphone outputs on the front and on the rear. On the front, you switch between F (front) and R (rear). This way, your favorite headphones remain firmly connected on the rear – without visible cabling on the front.Milled from solidThe massive 45mm volume control knob milled from aluminum is a haptic highlight. Its mass together with the motorized Alps RK27 “Big Blue” potentiometer enhances the “spoon in the honey” feeling even further.The red marker LED ensures good visibility of the volume parameter even in darkened environments.Remote controlThe volume control can be remotely controlled with any infrared remote control.The Phonitor xe learns to communicate with it with the simple push of a button.Learning made easyUsing Phonitor x as an example, this video explains how you can use any infrared remote control to remotely control the volume.Source of joyUp to six (6 !) stereo sources can be connected to the Phonitor xe:XLR, RCA and via the optional DAC768 also USB, COAX, OPTICAL and AES.Phonitor xe accepts almost all audio connections. Balanced via XLR or unbalanced via RCA connectors.With the optional DAC768, four additional digital sources are added. From USB to professional AES format, no wishes remain unfulfilled.The DAC automatically picks up the sampling rate and resolution of the digital playback source. No matter if a streamer, computer or CD player is connected. No further settings on the Phonitor xe are necessary.The DAC768The highly acclaimed AKM AK4490 Velvet Sound™ premium DAC chip is used as the converter chip in the optional digital-to-analogue converter, which thanks to its architecture reproduces the finest sound details.It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768 kHz, which is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to a resolution of DSD4 or DSD256. In contrast to the DAC 768xs, the DAC768 not only offers an AES/EBU digital input, but also the SPL DLP120 with VOLTAiR technology.The DLP120 (Dual Low-Pass)The analog output of the DAC chip must be filtered by a low pass filter. Phonitor xe has two of them: One for PCM audio and one for DSD audio, since different roll-off frequencies are required.In contrast to all other DACs in the world, the low pass filters here are built using VOLTAiR technology, which provides a plus in dynamics and headroom and sound.Good ol' timesTwo mechanical VU meters visualize the input levels for the left and right audio channel.With the VU switch you can optimize the display for different signal levels.Finding the middleis not always easy. By our very nature, hearing can be leaning more to the left or more to the right. This is especially obvious when listening with headphones.That’s why Phonitor xe has the uniquely finely resolved laterality control. With it, the center can be found perfectly.With the MODE switch you can choose between stereo or mono playback. This switch also activates the laterality control.The Revolution: Phonitor MatrixThe Phonitor Matrix is the revolution in the headphone amplifier.Thanks to the Phonitor Matrix, music can be experienced on headphones as if it was played on speakers. The tiring super stereo effect is a thing of the past.Enjoy your music without listening fatigue and exactly the way it should be heard.Music is normally produced and mixed for playback on stereo speakers.Listening on headphones is different from listening on loudspeakers. The biggest difference is the lack of crossing signals of the sound signal from the left speaker to the right ear and from the right speaker to the left ear. These crossing signals are missing in conventional headphone listening, because there are no signals crossing from one side of the headphones to the other. This results in an unnaturally wide stereo image and the various sound sources of the audio signal are not localized as the sound engineer intended them to. This effect is often referred to as “super stereo effect”. During conventional listening on headphones, our brain can balance the false representation of the playback to a certain extent – but this is very exhausting.The SPL Phonitor Matrix can correct this false stereo image with an analog circuitry. The Phonitor Matrix therefore not only ensures a correct representation of the stereo image, but also a relaxed listening experience.The two main parameters of the Phonitor Matrix are Crossfeed and Angle:Crossfeed determines the crossing signals of the channels, the so-called interaural level difference.Angle determines the opening angle of the stereo image, the so-called interaural time difference.Center of AttentionTo make the listening experience even more perfect, the level of the center of the stereo image needs to be attenuated when the Phonitor Matrix is active. This ensures that not only the position of all sound sources is correct but also their volume.In the Professional Fidelity Phonitor devices this value is set to a fixed attenuation of -1 dB, which is the best choice for getting an authentic representation of the sound stage.Sounds good!With all devices of the Professional Fidelity series we develop not only according to plan, but also by ear. All important components are installed on the circuit boards using Through-hole technology. This way we can ensure that we can use the best sounding components.The VOLTAiR TechnologyThe 120V technology is our reference technology. The 120V technology is unique in the world. It operates at a DC voltage of 120 volts. This is four times that of IC-based semiconductor op-amps. In our Professional Fidelity series, we refer to this unsurpassed technology as VOLTAiR technology.The highest possible audio quality requires the highest possible audio operating voltage.The 120V technology works with +/-60 V. To be able to handle such a high voltage, we have developed special proprietary operational amplifiers that can operate with a DC voltage of +/-60 V: the SPL 120V SUPRA operational amplifiers. This high voltage would destroy conventional components and operational amplifiers.By the way, the “120V” in the name of the technology has nothing to do with the local mains voltage from the mains power socket. This is about the operating voltage inside the device with which the audio signals are processed.The mains voltage from the mains power socket is transformed to the required secondary voltage in the device’s internal linear power supply with toroidal transformer. Rectifiers convert this AC voltage into DC voltage required in the audio device.

The headphone amplifier with preamplifier Enjoy music over headphones and over speakers equally excellently with the superior VOLTAiR technology – that’s why we developed Phonitor x. For all headphones The Phonitor x offers connections for standard headphones with jack plug and for balanced headphones a 4-pin XLR connector. Thanks to the enormous output power of 18 watts, all headphones are driven effortlessly. To the power amplifiers or to the active loudspeakers you can use the balanced XLR- for long, and the RCA sockets for short cable runs. Practical are the AMP CTL sockets to which power amplifiers with 12V trigger inputs can be connected to switch them on and off together with Phonitor x. Milled from solid is the big 45mm Volume control. Its mass together with the  motorized Alps RK27 “Big Blue” potentiometer enhances the “spoon in the honey” feeling even further. The red marker LED makes the setting visible even in darkened environments. Volume RC The volume can be remote controlled with any infrared remote control, that the Phonitor x simply learns. To do this, press the IR programming button and then the buttons for louder and quieter. Source of joy Up to six (6 !) stereo sources can be connected to Phonitor x: XLR, RCA, USB, Coax, Optical and AES/EBU Phonitor x accepts a large variety of audio connections. Balanced via XLR or unbalanced via RCA connectors. With the optional DAC768xs, three additional digital sources can be added. The DAC768xs The highly acclaimed AKM AK4490 Velvet Sound™ premium DAC chip is used as the converter chip in the optional digital-to-analogue converter, which thanks to its new architecture reproduces the finest sound details. It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768kHz, which is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to a resolution of DSD4 or DSD256. Good ol' times Two mechanical VU meters visualize the input levels for the left and right audio channel. Finding the middle is not always easy. By our very nature, hearing can be leaning more to the left or more to the right. This is especially obvious when listening with headphones. That’s why Phonitor x has the uniquely finely resolved laterality control. With it, the center can be found perfectly. With the mode switch you can choose between stereo or mono playback. To the right, the laterality control is switched on. The Revolution in the headphone amplifier is the Phonitor Matrix, thanks to which you can listen to music through headphones as if you were listening through speakers. The tiring super stereo effect is a thing of the past. Enjoy your music exactly the way it should be heard.  Specifications: Analog inputs & outputs: XLR (balanced) and RCA Maximum input & output gain: 32.5 dBu Input impedance (RCA): 20 kΩ Input impedance (XLR): 20 kΩ Output impedance: 75 kΩ Common mode rejection (XLR): 82 dB Frequency range (-3dB): 4 Hz – 300 kHz THD + N (10 Hz – 22 kHz, 0 dBu): 0.00085 % Noise (A-weighted): -103.8 dBu Crosstalk (1 kHz): -106 dB Dynamic range: 136.3 dB Digital Inputs: DAC768xs (optional) Coaxial SPDIF (RCA), PCM sample rates: 44.1/48/88.2/96/176.4/192 kHz Optical SPDIF (Toslink F06), PCM sample rates: 44.1/48/88.2/96/with Glass fibre

Our nonplusultra headphone amplifier.The Phonitor xe is the nonplusultra standalone headphone amplifier without any compromises. Phonitor Matrix, remote volume control, retro-look VU meter, the optional premium DA converter and the all-superior VOLTAiR technology make the Phonitor xe one of the best headphone amplifiers of our time.Great Sound – for all headphonesThe Phonitor xe offers connections for a standard headphone with a stereo jack plug and for balanced-driven headphones using a 4 pin XLR plug.Thanks to the enormous output power, all headphones are driven effortlessly.Thus, it plays out the advantages of the SPL VOLTAiR technology and rewards the listener with an honest, detailed and at the same time vivid sound experience.Twice as niceThe Phonitor xe provides headphone outputs on the front and on the rear. On the front, you switch between F (front) and R (rear). This way, your favorite headphones remain firmly connected on the rear – without visible cabling on the front.Milled from solidThe massive 45mm volume control knob milled from aluminum is a haptic highlight. Its mass together with the motorized Alps RK27 “Big Blue” potentiometer enhances the “spoon in the honey” feeling even further.The red marker LED ensures good visibility of the volume parameter even in darkened environments.Remote controlThe volume control can be remotely controlled with any infrared remote control.The Phonitor xe learns to communicate with it with the simple push of a button.Learning made easyUsing Phonitor x as an example, this video explains how you can use any infrared remote control to remotely control the volume.Source of joyUp to six (6 !) stereo sources can be connected to the Phonitor xe:XLR, RCA and via the optional DAC768 also USB, COAX, OPTICAL and AES.Phonitor xe accepts almost all audio connections. Balanced via XLR or unbalanced via RCA connectors.With the optional DAC768, four additional digital sources are added. From USB to professional AES format, no wishes remain unfulfilled.The DAC automatically picks up the sampling rate and resolution of the digital playback source. No matter if a streamer, computer or CD player is connected. No further settings on the Phonitor xe are necessary.The DAC768The highly acclaimed AKM AK4490 Velvet Sound™ premium DAC chip is used as the converter chip in the optional digital-to-analogue converter, which thanks to its architecture reproduces the finest sound details.It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768 kHz, which is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to a resolution of DSD4 or DSD256. In contrast to the DAC 768xs, the DAC768 not only offers an AES/EBU digital input, but also the SPL DLP120 with VOLTAiR technology.The DLP120 (Dual Low-Pass)The analog output of the DAC chip must be filtered by a low pass filter. Phonitor xe has two of them: One for PCM audio and one for DSD audio, since different roll-off frequencies are required.In contrast to all other DACs in the world, the low pass filters here are built using VOLTAiR technology, which provides a plus in dynamics and headroom and sound.Good ol' timesTwo mechanical VU meters visualize the input levels for the left and right audio channel.With the VU switch you can optimize the display for different signal levels.Finding the middleis not always easy. By our very nature, hearing can be leaning more to the left or more to the right. This is especially obvious when listening with headphones.That’s why Phonitor xe has the uniquely finely resolved laterality control. With it, the center can be found perfectly.With the MODE switch you can choose between stereo or mono playback. This switch also activates the laterality control.The Revolution: Phonitor MatrixThe Phonitor Matrix is the revolution in the headphone amplifier.Thanks to the Phonitor Matrix, music can be experienced on headphones as if it was played on speakers. The tiring super stereo effect is a thing of the past.Enjoy your music without listening fatigue and exactly the way it should be heard.Music is normally produced and mixed for playback on stereo speakers.Listening on headphones is different from listening on loudspeakers. The biggest difference is the lack of crossing signals of the sound signal from the left speaker to the right ear and from the right speaker to the left ear. These crossing signals are missing in conventional headphone listening, because there are no signals crossing from one side of the headphones to the other. This results in an unnaturally wide stereo image and the various sound sources of the audio signal are not localized as the sound engineer intended them to. This effect is often referred to as “super stereo effect”. During conventional listening on headphones, our brain can balance the false representation of the playback to a certain extent – but this is very exhausting.The SPL Phonitor Matrix can correct this false stereo image with an analog circuitry. The Phonitor Matrix therefore not only ensures a correct representation of the stereo image, but also a relaxed listening experience.The two main parameters of the Phonitor Matrix are Crossfeed and Angle:Crossfeed determines the crossing signals of the channels, the so-called interaural level difference.Angle determines the opening angle of the stereo image, the so-called interaural time difference.Center of AttentionTo make the listening experience even more perfect, the level of the center of the stereo image needs to be attenuated when the Phonitor Matrix is active. This ensures that not only the position of all sound sources is correct but also their volume.In the Professional Fidelity Phonitor devices this value is set to a fixed attenuation of -1 dB, which is the best choice for getting an authentic representation of the sound stage.Sounds good!With all devices of the Professional Fidelity series we develop not only according to plan, but also by ear. All important components are installed on the circuit boards using Through-hole technology. This way we can ensure that we can use the best sounding components.The VOLTAiR TechnologyThe 120V technology is our reference technology. The 120V technology is unique in the world. It operates at a DC voltage of 120 volts. This is four times that of IC-based semiconductor op-amps. In our Professional Fidelity series, we refer to this unsurpassed technology as VOLTAiR technology.The highest possible audio quality requires the highest possible audio operating voltage.The 120V technology works with +/-60 V. To be able to handle such a high voltage, we have developed special proprietary operational amplifiers that can operate with a DC voltage of +/-60 V: the SPL 120V SUPRA operational amplifiers. This high voltage would destroy conventional components and operational amplifiers.By the way, the “120V” in the name of the technology has nothing to do with the local mains voltage from the mains power socket. This is about the operating voltage inside the device with which the audio signals are processed.The mains voltage from the mains power socket is transformed to the required secondary voltage in the device’s internal linear power supply with toroidal transformer. Rectifiers convert this AC voltage into DC voltage required in the audio device.

The headphone monitoring amp and preamplifier with Phonitor Matrix. Phonitor 2 is the ultimate headphone amplifier for sound and mastering engineers who also mix and master on headphones. Speakers can also be connected, making Phonitor 2 a full-fledged monitor controller. Milled from the solid aluminum is the 45mm large volume knob. Its mass in combination with the motorized Alps RK27 “Big Blue” potentiometer further enhances the “spoon in honey” turning feeling. Remote control The volume can be adjusted with any infrared remote control, which Phonitor 2 simply learns. Just press the IR programming button on the back and then the buttons for louder and softer. Learning made easy This video explains how you can use any infrared remote control to remotely control the volume. Monitor Controller Features Sources: 2x XLR, 1x RCA Solo L/R Phase reversal for L and R Output switchable to headphones or speakers  Mute Phonitor Matrix with crossfeed, speaker angle and center level (the latter can be switched off) To The Power Amp or to the active loudspeakers it goes symmetrically via XLR sockets. Slave Thru The volume control can be switched off by means of a dip-switch on the bottom of the unit.  The Sources Two balanced and one unbalanced stereo sources can be connected to Phonitor 2. If a CD player or other HiFi equipment is connected to the RCA jacks, the consumer level can be raised from -10 dBV to 0 dBu using a dip switch on the bottom of the unit. In this way the sources are comparable in level. Mechanical VU Meter visualize the input levels, which can be switched in sensitivity with the VU Cal switch. Laterality By its very nature, hearing can be directed more to the left or more to the right. This is particularly evident when listening with headphones. That’s why Phonitor 2 has the finely resolved Laterality control. With it the center can be set perfectly. The Revolution in the headphone amplifier is the Phonitor Matrix, thanks to which you can create and evaluate your production through headphones in the same way as through speakers.  To achieve this, the super stereo effect must be corrected. It makes the placement of voices and instruments in the stereo image appear to be more widely distributed and effects like reverb and delays are overdone. 

Designed and manufactured in the United Kingdom, CALLIA embodies the Prism Sound uncompromising approach to audio resulting in the most accurate and detailed DAC available. Callia reveals the most minute nuance of any performance and is flexible in the face of a variety of genres. Hear your music the way it was intended. PRISTINE SOUND QUALITY Callia makes no compromises on audio quality, ensuring you’ll experience music at home exactly as it was experienced by those who created it in the studio. Our heritage and unrivaled experience has allowed for the creation of a DAC of unparalleled sonic clarity. HEADPHONE OUTPUT CALLIA’s headphone output boasts a high-current, low impedance design optimized for the best possible performance. Able to power a wide range of high end headphones, CALLIA will adjust and match the impedance of your headphones for an unbeatable listening experience. SIMPLIFIED CONNECTIVITY Callia is compatible with the widest range of computer hardware using a USB2 interface supporting UAC2 audio. Auto input detection and output protection allows for the hot plugging of cables without fear of damaging your speakers. UNSURPASSED CLOCKING AND JITTER REJECTION Prism Sounds long history in developing test and measurement equipment for the audio industry has provided Callia with the pinnacle of ultra-stable clocks, ensuring the most accurate and detailed conversion available. AUDIO FORMATS CALLIA supports linear PCM in 2’s complement binary coding and, using the “DSD over PCM” (DOP) protocol, DSD at the original bit-rate (DSD64) and also at 2 x the original rate (DSD128). DSD Files encoded as “DOP” may be played with both ASIO and WDM drivers. Your computer, tablet or transport will commonly decode formats such as mp3 to PCM prior to transmission to the sound card, so these formats will typically be supported on your device in the same manner as they would be with another sound card. On the S/P-DIF inputs, DOP can also be used, but only at the original DSD bit rate (DSD64) as these connections do not have enough bandwidth for DSD128. The ASIO native DSD format is not currently supported. Specifications: Dimensions: Table-top (including feet): 285 x 242 x 50mm Power: 90VAC – 250VAC, 50 – 60Hz 15W consumption 0.5A(T), 20mm, glass Inputs: 1 x USB Audio Device Class 2.0 1 x TOSLINK for S/PDIF 1 x RCA for AES3-ID Outputs: 2 x XLR (balanced) 2 x RCA (pseudo-balanced)

The HeadAmp4 offers 1/8th-inch as well as 1/4-inch inputs and outputs as well as lower noise, lower distortion and more output in a new custom extruded stackable metal case.Ideal for virtually any home or project studio, the ARTcessories HeadAmp4 easily adds additional headphone outputs to any mixer, computer audio interface, workstation, iPod, media player or laptop without creating any additional load on the existing headphone source.Individual level controls for the four headphone outs, 1/4-inch and now 1/8th-inch connections allow the HeadAmp4 to connect to virtually any source, and drive any headphone configuration including studio phones, in-ear monitors or custom ear pieces or any combination of the above.Features:4 Output Channels Each with Individual Volume ControlStereo ¼-inch & 1/8-inch Inputs (Wired Parallel)Can be Connected to Any Line-Level Source or Headphone OutputFour Stereo ¼-inch & Four 1/8-inch Headphone OutputsPower "On" LEDSpecifications:Maximum Input Level: +14dBVInput Impedance: 90.9k ΩMaximum Output Level: +14dBuMaximum Gain: 20dBOutput Impedance: 47 Ω (each output)Frequency Response: 20 - 20 kHzSignal To Noise Ratio: > 90dB (ref 0dBu)Total Harmonic Distortion:

The headphone amplifier with preamplifier Enjoy music over headphones and over speakers equally excellently with the superior VOLTAiR technology – that’s why we developed Phonitor x. For all headphones The Phonitor x offers connections for standard headphones with jack plug and for balanced headphones a 4-pin XLR connector. Thanks to the enormous output power of 18 watts, all headphones are driven effortlessly. To the power amplifiers or to the active loudspeakers you can use the balanced XLR- for long, and the RCA sockets for short cable runs. Practical are the AMP CTL sockets to which power amplifiers with 12V trigger inputs can be connected to switch them on and off together with Phonitor x. Milled from solid is the big 45mm Volume control. Its mass together with the  motorized Alps RK27 “Big Blue” potentiometer enhances the “spoon in the honey” feeling even further. The red marker LED makes the setting visible even in darkened environments. Volume RC The volume can be remote controlled with any infrared remote control, that the Phonitor x simply learns. To do this, press the IR programming button and then the buttons for louder and quieter. Source of joy Up to six (6 !) stereo sources can be connected to Phonitor x: XLR, RCA, USB, Coax, Optical and AES/EBU Phonitor x accepts a large variety of audio connections. Balanced via XLR or unbalanced via RCA connectors. With the optional DAC768xs, three additional digital sources can be added. The DAC768xs The highly acclaimed AKM AK4490 Velvet Sound™ premium DAC chip is used as the converter chip in the optional digital-to-analogue converter, which thanks to its new architecture reproduces the finest sound details. It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768kHz, which is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to a resolution of DSD4 or DSD256. Good ol' times Two mechanical VU meters visualize the input levels for the left and right audio channel. Finding the middle is not always easy. By our very nature, hearing can be leaning more to the left or more to the right. This is especially obvious when listening with headphones. That’s why Phonitor x has the uniquely finely resolved laterality control. With it, the center can be found perfectly. With the mode switch you can choose between stereo or mono playback. To the right, the laterality control is switched on. The Revolution in the headphone amplifier is the Phonitor Matrix, thanks to which you can listen to music through headphones as if you were listening through speakers. The tiring super stereo effect is a thing of the past. Enjoy your music exactly the way it should be heard.  Specifications: Analog inputs & outputs: XLR (balanced) and RCA Maximum input & output gain: 32.5 dBu Input impedance (RCA): 20 kΩ Input impedance (XLR): 20 kΩ Output impedance: 75 kΩ Common mode rejection (XLR): 82 dB Frequency range (-3dB): 4 Hz – 300 kHz THD + N (10 Hz – 22 kHz, 0 dBu): 0.00085 % Noise (A-weighted): -103.8 dBu Crosstalk (1 kHz): -106 dB Dynamic range: 136.3 dB Digital Inputs: DAC768xs (optional) Coaxial SPDIF (RCA), PCM sample rates: 44.1/48/88.2/96/176.4/192 kHz Optical SPDIF (Toslink F06), PCM sample rates: 44.1/48/88.2/96/with Glass fibre

Designed for musicians and performers who demand mobility without compromising audio quality, the HP2 personal headphone amplifier is a great choice for driving wired in-ear monitors (IEMs), as well as headphones. PreSonus HP-series headphone amplifiers have long been popular for their loud, clean, clear sound and roadworthy built quality.The new HP2 delivers these qualities in an easily affordable, stereo device so you’ll hear every note and beat clearly wherever your music takes you.Portable and compact, the HP2 gives you all you need to drive your headphones or in-ears without complicating your setup. It sports two XLR line-level inputs and one stereo 1/8-inch headphone output with volume control. Operation can be switched between stereo and mono, and a Pan knob is provided. Like all PreSonus gear, it’s built to take the rigors of life on the road. And it mounts on a microphone stand or clips to your belt. Simple, easy to use, built to travel, has the right features, sounds great. That’s how we roll at PreSonus.When you’re playing an extra long show or two shows back-to-back, having to stop and change batteries on your headphone amp is a hassle you don’t need. No worries! HP2 stands for “Has Power 2 Spare.” The HP2 can be powered with an external DC power supply or a nine-volt battery that lasts more than seven hours and includes an LED battery indicator. So you can play those extra-long gigs and hear your monitor mix perfectly—all night long.Features:Battery-powered, stereo headphone amplifierVolume control knobPan control knobStereo/mono operation switchBattery-health LED indicatorsBelt clipSpecifications:Inputs: 2 female XLR connectorsOutput: stereo, 1/8” phone connector2m cable (5-pin mini XLR to 2 female XLRs) included9V battery or DC power supply5/8-inch (27 tpi) microphone stand-mount socketConnector Type: 1/8” TRS stereo, FemaleMax. Output Power: 50 mW / channel, 12Ω  

Compact, Portable Headphone Amp / DAC / PreampThe m900 is a portable, desktop friendly headphone amplifier / DAC / preamp combo designed to give audio professionals and enthusiasts musical and transparent audio playback from USB, S/PDIF or TOSLINK sources. For small DAW studio setups, portable laptop editing or mixing rigs, or just pure playback enjoyment, the m900 provides the same analog and DAC quality as our large monitor controllers, but in a rugged, portable and surprisingly affordable unit.The m900 DAC uses the latest generation AKM 4490 chip, which features 32-bit processing and supports sample rates up to 384kHz PC or 256x DSD. The USB interface operates in asynchronous mode allowing the m900 to be the clock master which makes the system immune to USB bus jitter. S/PDIF and Toslink inputs allow the m900 to enhance to any DAW interface with true reference quality D/A conversion, headphone monitoring and stereo speaker control.An intelligent power supply design allows for two power operation modes - LOW and HIGH. LOW power mode is from USB connector #1, which provides bus power along with data, allowing the m900 to operate from a single connection to your computer. HIGH power power mode is available by connecting the included 2A USB DC power supply to the USB connector #2, which provides additional power harder to drive headphones.Transimpedance amplifier topology coupled to a zero ohm output impedance driver provides headphone performance that is incredibly spacious and transparent with a tight, enveloping low end. Our latest generation crossfeed circuit rounds out the design by simulating an acoustic listening environment in the headphones. Familiar tracks become new again with surprise details, while audio production tasks like tracking, mixing and editing happen faster and easier.After many years of honing our DAC and headphone amplifier designs, the m900 distills the best of what we've learned in a compact, rugged and simple unit. Weather in the studio, on your desk or on the road, the m900 will bring you closer to the music you love. Features:USB, S/PDIF and Toslink digital inputs, supports up to 192kHz (Toslink up to 96kHz)Asynchronous USB interface for jitter free computer audio playback, supports up to 384kHz PCM and 256x DSDDual zero ohm output impedance headphone outputsUnbalanced level controlled outputs via RCA for connecting to a stereo monitor systemCompact, portable chassis perfect for travel, desktop or studioLow power mode via USB Bus powerHigh power mode via included USB 2A power supply4 different DAC filter settings to tailor playback performance to personal preferenceSimple user setup menu for setup and calibration7 segment LED display displays level and setup menu informationLarge rotary encoder for volume control and setup menu navigationMade in Lyons, CO USA5 year transferable Warranty

The PreSonus HP60 6 Channel headphone amp. The ultimate headphone amplification system delivering loud and clear headphone mixes for real-world recording situations.The PreSonus HP60 is one of the most flexible and advanced headphone mixing system available for professional and project recording studios as well as live sound in-ear monitoring systems. Loaded with six independent, loud and clear headphone amplifiers, the HP 60 features dual stereo inputs as well as external input, for each channel allowing you to mix between three stereo audio streams (mix A, mix B, and external input).Stereo output is also available on each channel to send line level headphone channel mixes to additional headphone amplifiers or monitor systems. Each channel features headphone level, mix control between A and B inputs, external input volume, mute and mono. The HP60 also features talkback via external XLR microphone input.A common set up of the HP60 in a recording session is to send the main control room mix to input A. Send the click track to input B. Send the each band member direct recording input to each channelΆs external input (more me). This will allow each band member to create a mix between the main mix, the click track and themselves.The main features of the PreSonus HP60 include:Six independent ultra low noise, high output headphone amplifiers (150 mW per channel)Two sets of stereo inputs (A and B) with balanced TRS connectorsStereo external input point on each channel for “more me” with trim controlMix control between inputs A and BTalkback with external XLR microphone with controlDirect stereo line output on each channelInput A: (2) 1/4 inch TRS balanced 10 OhmsInput B:(2) 1/4 inch TRS balanced 10 OhmsExternal input: TRS stereo unbalanced 10 OhmsHeadphone amplifier output power: 150 mW RMS (60 Ohms) per channelAudio outputs: 1/4 inch TRS stereo unbalanced per channelMaster controls: Talk button, Talkback volume, Input A, Input BChannel controls: Headphone level, Mix A/B control, External input level, Mono, MuteExternal talkback: XLR with TS external control jackPower: IEC 110V-240V internal switching