Mic Preamps

Borrowing the same award-winning microphone preamplifiers found on their 744T digital portable interface, the Sound Devices USBPre 2 provides one of the highest quality portable interfaces available for both Mac and Windows computers. The USBPre 2 is equipped with a pair of fully discrete, transistor-based XLR inputs and impressively lucid 24-bit converters that are capable of up to 192kHz sample rates.Additional inputs for line-level sources and consumer audio electronics, as well as S/PDIF optical Toslink digital devices are also available. A 23-segment, multicolor LED meter provides you with the essential feedback you need to keep an eye on your levels, and are an invaluable asset when using the USBPre 2 as a standalone preamp and A-to-D converter.The MM-1 is at home in high-definition television production, corporate/industrial environments, radio/television announce booths, and music production.Its headphone monitor is an advantage in applications where communications channels or mix-minus feeds need to be monitored in headphones. The user can monitor both microphone audio and external audio sources in headphones with level control. The MM-1 is designed to be durable. Its aluminum chassis, oversized end panels, machined knobs, and panel mounted connectors assure reliable mechanical operation.Sound Devices’ MM-1 is a single-channel, portable microphone preamplifier with a powerful headphone monitoring function. Proven in mission-critical applications, the high-performance microphone preamplifier uses a transformer-balanced input and output with a bipolar ±15 volt power supply to produce low-noise, low-distortion gain at all switch positions. It features an “unclippable” dual-stage limiter and two-position high-pass filter. Flexible microphone powering provides phantom power at 48 volts or 12 volts and 12-volt T-power. It is powered from two-AA batteries or external 5-17 VDC, such as via the PIX-E PSU.Features:Maximum of 66 dB of gain, in eleven discrete stepsDynamic range exceeding 120 dB10 Hz to 50 kHz audio bandwidthHigh immunity to RF interferenceHigh current line output driverTransformer-balanced input and outputExtended range peak limiter via dual opto-isolators makes preamplifier virtually “unclippable”Selectable 48-volt / 12-volt phantom power or 12-volt “T” powerHigh-pass filter @ 80 or 160 Hz, 6 dB per octaveHeadphone monitoring of microphone audio, monitor audio, or a mix of bothMonitor input accepts mono, balanced or unbalanced line-level inputs on 1/4-inch tip-ring-sleeve connectorSeparate level control of Monitor gain and overall headphone gainSplit ear function via DIP switchesInternal battery power (two-AA)Excellent battery life with alkaline and NiMH rechargeable batteriesExternal 5-17 VDC poweringHigh-strength aluminum chassis with durable belt clip   

The 1073 Legend Lives in Warm Audio's Splendid WA73-EQThe legendary 1073 wrote the book on characterful mic preamplification and EQ. These venerable circuits helped define the punchy sound of '70s rock — and countless recordings and live concerts ever since. Today, this coveted tone can be yours for a song, with the Warm Audio WA73-EQ mic/line/instrument preamp. In both design and performance, the WA73-EQ pays homage to the revered British console lineage that started it all. Throughout the audio industry, the 1073 is considered the holy grail of preamps and EQs, with a rich, sweet, and bold tonality that's ideal for making audacious statements with your music. After years of R&D, painstaking reverse-engineering, and countless hours of listening, Warm Audio captured the sonic essence of this classic perfectly in their boutique WA73-EQ. With 80dB of gain and a fully discrete transformer-balanced signal path, the sound is a revelation: harmonically rich bottom end, focused midrange, and slightly resonant highs.Handcrafted with top-quality parts Boasting weapons-grade build quality with discrete, handwired Class A circuits and top-drawer parts such as UK-made Carnhill transformers and Blore Edwards mil-spec, dual-concentric switch pots, the WA73-EQ has 80dB of gain on tap so you can capture subdued sources with your favorite ribbon mic. Your ribbons and condensers will sound heavenly; you'll even be gobsmacked when you hear how authoritative your dynamic mics sound. Cranking the input stage and backing off the output gain enhances your tracks with tasty vintage-style coloration. Topping off the feature set is an instrument jack, polarity reverse, 48V phantom power, and switchable impedance for tonal variation and to optimally match a variety of microphones.Optimize every source — and microphone There is no source that doesn't sound amazing through the Warm Audio WA73-EQ. With judicious mic selection and placement, drums are larger-than-life; DI bass and keyboards sound massive and synths become trance-inducing; electric guitars soar; vocals rule. Pianos and acoustic guitars are resplendent. Orchestral instruments — strings, woodwinds, brass, and percussion — achieve ineffable lushness and dimension. You can even use the WA73-EQ as a tone-shaping tool to run stems or complete mixes through. Hear what the WA73-EQ can do for your own recordings. It's transformative.Definitive British EQ The EQ section of the WA73-EQ adheres to the classic 1073 circuit topology. The vintage 1073 is the holy grail of EQ, and the WA73-EQ nails its sonics and behavior (complete with its fabled harmonic distortion). It's a three-band affair, with HF shelving at 10, 12, and 16kHz; midband peaking with selectable center frequencies at 360Hz, 700Hz, 1.6kHz, 3.2kHz, 4.8kHz, and 7.2kHz; and LF shelving, selectable at 35Hz, 60Hz, 110Hz, and 220Hz. A highpass filter, selectable at 50Hz, 80Hz, 160Hz, and 300Hz, lets you trim your signals of unwanted low end. If you've never worked with a 1073-style EQ before, all we can say is: you're in for a serious treat. It's worth noting that the original 1073 offered only a fixed 10kHz shelf, and the additional high-frequency flexibility afforded by the WA73-EQ is most welcome.UK Custom Carnhill transformers 1073-loving engineers at Sweetwater perk up when the conversation turns to the component history of these classic circuits, and signal transformers are a frequent topic of discussion. Vintage 1073s used different transformer variants throughout their production run; but the most coveted were the very first ones made by Marinair Radar, due to their fluid and forgiving nature that saturates sweetly when pushed. They have been known to bring engineers to tears when they hear how gorgeous their mixes sound through them! Warm Audio turned to Carnhill Transformers of Cambridgeshire, UK, to design meticulous replicas of these most desirable early 1073 transformers. The results are stunning, and — to our ears — tantalizingly close to early vintage 1073s.Warm left no stone unturned A vital yet not-often-discussed component of these classic British circuits is the different types of capacitors and output transistors used. To maintain the integrity of the original circuits, Warm decided to use high-quality tantalum and polystyrene capacitors in the signal path and an output transistor choice that delivers smoother results at higher gain settings than what is commonly found in today's 1073-style preamps. All considered, Warm Audio's monumental effort to design a no-compromise product has paid off handsomely. You'll appreciate this every time you plug into the WA73-EQ and hit record.Warm Audio WA73-EQ Mic/Line/Instrument Preamp and EQ Features: Handwired and hand-assembled, single-channel 1073-style preamp/EQFully discrete, Class A, transformer-balanced circuitryUK-made Carnhill Transformers80dB of gain handles any type of microphone, including low-output ribbonsResistor-stepped rotary gain switch for easy recallTone button changes input transformer impedance for mic optimization and tonal shapingPolarity switch48V phantom power4-position inductor-based highpass filter, selectable for Off, 50, 80, 160, or 300HzInductor-based 3-band equalizationLow-band boost/cut at 35, 60, 110, or 220HzMid-band boost/cut at 360, 700, 1600, 3200, 4800, or 7200HzHigh-band boost/cut at 10, 12, or 16kHzAdditional high-band frequency EQ points added (compared to vintage 1073)XLR mic inputLine-level TRS inputTS Send/Receive insert jacksXLR and TRS line-level outputsDI instrument inputOutput level controlLED level indication meterRugged 19" rackmount chassisGround lift switchInternal IEC 115V/230V power inlet

Manley designed the Core reference channel strip so that you can hit record and focus on your performance, not your signal chain. It sports the quality, performance, and flexibility their VOXBOX is known for, at a price that makes it accessible to any serious artist or engineer. You get a world-class Manley mic pre, followed by a 3:1 ELOP style compressor for effortless dynamic control. Engineers at Athens Mastering are ecstatic over the active Baxandall EQ, and a fast attack FET brickwall limiter at the end of the chain protects your converters from accidental clipping. Even if you plug right in without tweaking a single knob, you're sure to get an amazing sound.Manley Core Reference Channel Strip Features:Easy to use and awesome-sounding channel strip based on the award-winning VOXBOXClass A tube mic preamplifier with Manley's hand-wound transformersDirect input uses the same circuit as the Manley SLAM! for fantastic direct-instrument recordingsELOP compressor with 3:1 ratio tames any signal transparentlyBaxandall EQ with low/high shelving and sweepable mid for flexible sonic sculptingFast attack FET brickwall limiter ensures you don't clip your converters during recordingFlexible metering can display input, output, and compressor gain reduction levels 

In any audio device, the power supply is a significant contributor to sonic success or failure. In tube microphones this is even more so than anywhere else. The MP1 allows you to realise the full potential of your treasured vintage or contemporary tube mic. Hear your mike as never before.“The MP1 allows you to realise the full potential of your treasured vintage or contemporary tube mic”The 'MP1 | Grimm' re-writes the book on tube mic supplies. Drawing from the extensive expertise gained designing the supplies used in the AD1 and CC1 products, the MP1 uses discrete voltage regulators, a shunt regulator for the anode supply and a high precision series one for the filament supply. The anode supply offers noise as low as-100 dBV (in average 20 dB beter than existing supplies) and the 'shunt' design turns the regulator into an active decoupling device, eliminating electrolytics. Voltages are factory pre-set to match the customer's microphone specs.Stylish, compact and practical, the MP1 fits well on any recording stage.Features:ultra-low noise high voltage supplylarge isolation from mains disturbanceshunt anode voltage regulatorhigh precision filament supplytwo MP1's combine to a 1U 19" unitwith or without polar pattern controlpresets for every type of tube microphone* 

The PRE-73 DLX is a one-channel vintage style microphone-, line- and instrument preamplifier.The signal path uses only discrete components like resistors, capacitors and transistors. The line and microphone input and the line output are transformer balanced, using three different transformers, each one optimized for its purpose.This is the way audio components were built before integrated circuits became available. The subjective sound quality delivered by vintage equipment is often prefered over the one delivered by modern units, a situation that is even more obvious now when music is recorded with clean-sounding digital audio equipment.The circuit used in the PRE-73 DLX is similar to the preamp section in the classical 1073 module with a corresponding sound character that is warm, punchy, sweet and musical. These classic characteristics have been heard on countless recordings through the years and it is a versatile sound that works very well on most sound sources and in most genres.The essence of this sound is now available at a surprisingly low cost, making it available to nearly everyone.The PRE-73 DLX has a number of improvement and new features compared to the PRE-73 MKII:- Tantalum capacitors in the signal path.- Selectable 1073-style high pass filter, 50Hz, 80Hz, 160Hz and 300Hz.- Output Attenuator -7, -14, -21 and -28 dB (located after the output transformer) allows overdriving the output stage and the output transformer for added character by lowering the output signal to a suitable level.- The circuit board is prepared for Carnhill Mic and Line transformer and high pass inductor.- The Insert jack can be switched in/out from the front panel. An internal jumper can select that the Insert jack always has an output signal.- Switchable 600 ohm Output Termination and Ground Lift on the back panel.- Selectable Active or Passive DI input and selectable input impedance in active mode, Hi Z or 100 kohm, by internal jumpers.- The DI can signal can be selected to pass or bypass the mic input transformer by internal jumpers.- Relays are used to control internal switching for DI input, Phantom power, Mic Low Z, Insert and Phase for shorter circuit board signal paths. The relays are controlled by front panel switches.- Revised gain switch for added headroom.- Circuit board star grounding scheme.- Revised power supply with separate regulators for the audio circuits and relay and LED circuits.

High fidelity 500 series microphone preamplifier module Presenting the m501, our 500 series module version of the venerable m101 mic preamplifier. Now the signature transparency and detail of our circuit designs is available for your 500 series frame. While the 500 series market has plenty of colored mic preamplifier options, the natural, musical clarity of the m501 makes it a welcome addition to the field. This circuit is for engineers confident with the quality of the source, mic section and placement, and wish to capture it with as little coloration or distortion as possible.The m501 module is a balanced, transformerles preamplifier, with 48V phantom, a 75Hz HPF and a 1/4” HI-Z instrument input.Also standard is our exclusive ribbon mic mode, which raises the mic input impedance, bypasses the input decoupling capacitors and deactivates 48V phantom to protect delicate ribbon mics from damage.Large diaphragm, vintage ribbon or trusty dynamic - the m501 brings out the very best in any microphone and takes the guesswork out of your input chain. Stay tuned for complete details.

The A2D represents a landmark achievement for API; it is the first product ever produced by the company with an integrated digital output. Recognizing the desire for a high quality solution to raise microphone signals to a workable line level, we engineered one of our most popular mic preamp designs into an enclosure with our new proprietary analog to digital conversion. The result is a complete package - a pair of superb mic preamps feeding an A/D section with a set of standard digital interface outputs, multiple sample-rate choices, and internal or external clock options. Precise control of both the analog gain as well as the level feeding the digital section means that the mic signal can be maintained super-clean if desired, or driven harder on the analog side for that whallop and impact that can only be achieved by driving the transformer into saturation for that historic API sound! The A2D analog section consists of the circuitry contained in two API 312 mic preamps, or one half of the popular 3124 quad mic preamp rack product. A level control pot with an expanded 20-segment metering system shows precise mic gain levels. Control switches include polarity, 48v phantom power, input pad, 2:1 transformer routing, and Mic/Line select. Each analog input contains a balanced low-level XLR connector and a high-level line input on a 1/4 inch jack.      FEATURES A pair of signature 312 mic preamps API 2520 op amps 20 Segment LED metering on both Analog and Digital sections Mic and Line inputs Polarity, Phantom power, Input pad, 2:1, and Mic/Line switches 6 sample rate choices External Super Clock Input Multiple A2D units can be slaved together Insert point provided between Analog and Digital sections

The m802 is not just in a class of its own, it is an entirely different species. Arguably the worlds most evolved mic preamplifier, the m802 delivers functionality and performance which simply does not exist in any other mic amp design. The core is a high fidelity 8 channel microphone preamplifier designed to be extremely transparent and musical. Then the fun begins. The m802 is fully remote controllable. With our full featured stand alone hardware RCU, up to 64 channels (a system of 8 m802s) can be addressed and controlled seamlessly from up to 1000 away. All preamplifier functions, including gain, phase, 48V phantom are instantly accessible and adjustable. These settings can then all be stored into preset locations and instantly recalled.        FEATURES fast, musical transimpedance amplifier architecture fully balanced, transformeless design flexible digital metering with peak hold and reset controllable from Digidesign ProTools|HD systems and compatible control surfaces (and many other MIDI devices) 130V phantom power available, per channel pair, for DPA microphones dual high-current outputs (XLR+D-Sub) drive long cable runs and loads down to 50 Ohms fast, efficient Philips I2C serial protocol to control preamplifiers from up to 1000 feet away gain range of -7dB to +63dB in 1.5 dB steps new selectable ribbon mic mode channel group mode (perfect for stereo pairs, subgroups) RCU able to address up to 8 units (64 channels) from up to 1000 feet away front panel lockout mode large white backlit LCD display 15 User preset memory locations, for saving preamplifier settings (gain, phantom power, phase) A/D outputs include 2x8ch AES3 on DB25, 1x8ch AES3-id on 4 BNC connectors (supports double wire mode) optional ADAT Lightpipe output with SMUX for 96kHz s-LockTM dual stage PLL for extremely low jitter without sample rate conversion wordclock in and out

The Scarlett OctoPre Dynamic comprises eight natural sounding, low noise preamps with plenty of gain; eight line inputs and two high headroom instrument inputs, coupled with high quality digital  conversion to ADAT format. You can now expand your studio set-up or live rig by adding Focusrite quality mic preamps and conversion to any interface with ADAT I/O.The Scarlett OctoPre Dynamic has both digital and analogue outputs: in addition to dual ADAT optical ports it also provides a balanced line output from each channel, enabling you to connect it directly to any analogue device.Features:8-channel mic/line preamp expansion with ADAT I/O8 x 2nd-generation Scarlett mic/line presPer-channel soft-knee VCA compression8 line outputs: fed directly from the mic inputs or sourced from ADAT inputUp to 24-bit/192kHz AD/DA for high-resolution audioADAT I/O to expand any ADAT-equipped interfaceMic pres and rear-panel instrument inputs engineered with generous headroom5-segment LED metering and channel clip indicators48-volt phantom power available across all inputs (switchable: 1-4, 5-8) 

Audiophile Vacuum Tube Preamplifier with Preamp Modeling Technology and USB/Audio Interface. Tubes can really warm up a signal fast, giving it depth and character. Though transistors have succeeded the technology, many musicians agree that tubes deliver a far superior sound. The TUBE ULTRAGAIN MIC500USB’s handselected 12AX7 vacuum tube gives everything from microphones to acoustic or bass guitars that vintage tube vibe – in a dependable and ultra-affordable package.  The MIC500USB is perfect for studio and live applications. The balanced XLR and ¼ " TRS inputs give you maximum flexibility in either scenario. It derives its personality from a hand-selected 12AX7 tube with UTC technology for superior tube character and low-noise operation. The MIC500USB is ideally suited for use with standard digital recorders and sound cards, imbuing signals with the warmth, presence and classic tubecompression that will bring your digital tracks to life.The incredible MIC500USB’s controls consist of: switches for +48 V phantom power, 20 dB pad, Phase Reverse and Limiter; plus vintage-style Gain and Output knobs. An 8-segment LED meter provides accurate monitoring of output levels. And when used as a high-end DI (Direct Injection) box in the studio or on the stage, the MIC500USB delivers flawless performance and outstanding signal integrity.Features:Ultra-flexible Preamp Modeling allows you to optimize your recordingsChoose between 16 preamp voicings designed for electric and acoustic guitars, keyboards, bass guitars, drums, vocals and moreBuilt-in USB/Audio Interface to connect directly to your computer. Free audio recording, editing and podcasting software plus 150 instrument/effect plug-ins downloadable at behringer.comPowerful Phones output with Level control and Direct Monitor selectHand-selected 12AX7 vacuum tube with UTC technology for exceptional warmth and lowest noiseEnsures outstanding signal transparency when used as a high-end DI-boxSophisticated output limiter prevents the output signal from clippingDedicated low cut filter eliminates unwanted noise, e.g. floor rumble+48 V phantom power, Phase Reverse switch and 20 dB Pad for utmost flexibilityHighly accurate 8-segment LED level meterBalanced inputs and outputs on ¼" TRS and XLR connectors3-Year Warranty Program*Designed and engineered in Germany​ 

Scarlett OctoPre gives you eight additional inputs. It's the ideal way to expand your Scarlett - or any other interface with an ADAT input.Scarlett OctoPre features eight 2nd Generation Scarlett mic inputs - balanced line inputs too - all running through Focusrite precision 24-bit conversion at up to 192 kHz resolution with 109dB dynamic range.Two high-headroom instrument inputs will handle high output guitar pickups and are right there on the front panel for easy access. With high-headroom inputs and a pad on every channel, Scarlett OctoPre is ideal for tracking drums as well guitars, keyboards, vocals - and more.Eight balanced line outputs, sourced directly from the inputs allow Scarlett OctoPre to be used in a live situation whilst capturing the recording via the digital ADAT output. ADAT is a simple and easy way of expanding your analogue inputs. ADAT uses inexpensive "light-pipe" optical cables to carry up to eight channels of audio. Just connect the ADAT output on the OctoPre to the ADAT input on your interface, set your sample rate and clock source and you're ready to go. ADAT input is available on many Focusrite and third-party interfaces.If you need more inputs as well as more outputs check out the Scarlett OctoPre Dynamic - everything you see here, plus eight channels of pristine D-A conversion and analogue compression on every input. It might be just what you're looking for.​

FLAMINGO, is a high quality two channel discrete class A microphone pre-amp. It can be operated as a musically transparent pre-amplifier, but is capable of emulating vintage sounds as well as creating distinctive new ones.The input gain is selected by a stepped switch for gain matching and repeatability. This is followed by a continuously variable attenuator to provide gain trim. Gain is adjustable in 6 db steps to 66 db gain and down to off by the attenuator. Each channel has independently switchable phase and phantom power switches. FLAMINGO also contains a two channel 22 element VU meter with an over load indicator to allow accurate monitoring and ease of level adjustment.Unique to FLAMINGO are three switches that allow the user to select different sounds; these are the IRON, SOUND and TONE switches. The SOUND switch changes the type of amplifier and the IRON switch puts iron in the audio path. The TONE switch, a 3 position switch, allows for standard - (the original Flamingo sound) when the switch is in the center position, when moved to the right, Flamingo operates as a transparent preamp, and when the switch is in the left most position, it has more color. Needless to say, by using these switches FLAMINGO can produce many different combinations of sounds.Also added to Flamingo is an input impedance switch. Providing 2 choices, the first is the original Flamingo; the second is to match large diaphragm condenser mics as recommended by David Bock, of Bock Audio. It also has transformer-less balanced inputs and outputs. FLAMINGO is designed to be flexible and give the user a tool to solve real world recording, broadcast, and sound reinforcement problems. It can provide an artistic choice of sounds at the flip of a switch.

SYREN is a classic sounding tube preamp in a 500 series package, using a dual triode circuit with a 12AX7 tube SYREN features a dual gain stage circuit and allows overdrive effects.A switch selectable HI-z input is included.  The low cut filter is at 90 Hz and is 24 db/ octave.  The pad has -15 db and -25 db settings to allow a wide input range of signals.The audio path color is changed by modifying the second stage tube circuit so it has negative feedback or does not have negative feedback.  This changes the interaction between the tube stages and thus the sound of the pre-amp.  With negative feedback it is a more accurate audio path with wider frequency response and without negative feedback it has a more open warmer sound.

The new BEHRINGER ULTRAGAIN DIGITAL ADA8200 is sublimely easy to operate, fits neatly into a single rack space, and thanks to its MIDAS-designed Mic Preamps and integrated A/D and D/A converters you’ll get optimal signal conversion—without the slightest hint of distortion or signal deterioration! The ULTRAGAIN ADA8200 is the professional’s edge.The ADA8200 builds on the proud legacy of our ADA8000, which is one of our all-time, best-selling products. Now, you’re probably thinking, “If they sell so many ADA8000s, then why are they changing them?” The short answer – we improved it, by upgrading to reference-class Cirrus Logic converters and MIDAS-designed Mic Preamps, making the ADA8200 the natural choice for musicians and audio engineers alike.Signal conversion in the ADA8200 takes place at either 44.1 or 48 kHz with 24-bit resolution. The ADAT inputs and outputs can be operated independently, as long as there is an identical wordclock signal. Frequency range is an ultra-wide 10 Hz - 24 kHz at a 48 kHz sampling rate. Connections are provided for balanced XLR and ¼" TRS, as well as unbalanced ¼" TS inputs. XLR line out connectors located on the rear panel provide either balanced or unbalanced connectivity. Digital I/O is handled via ADAT format TOSLINK optical sockets, which support up to 8 channels of data.

The MIC2200 is perfect for studio and live applications. The balanced 1/4" TRS and XLR inputs and outputs give you maximum flexibility in either scenario. It derives its personality from a hand-selected 12AX7 for superior sonic character and low noise operation. The MIC2200 is great for adding a bit of “spice” to the sound of standard digital recorders and computer soundcards. And thanks to onboard +48 V phantom power, it can also add warmth to condenser mics.For further tone conditioning, the MIC2200 features a fully parametric EQ with adjustable center frequency, bandwidth and level per channel. Channels also feature a phase reverse switch. Tubes can really warm up a signal fast, giving it depth and character. The two-channel BEHRINGER PRO MIC2200 injects your sound with this timeless tone in preamp, line driver and DI box applications.

Avalon V5 Silver, 1 channel pre-amp, high-voltage design, Pure Class A, multi-purpose instrument, line and microphone pre-re-amplifier, low noise, high-gain, Pure Class A, microphone preamplifier with dual impedance ideal for ribbon-dynamic and high level condenser microphones, 10 meg.Ohms instrument DI input with zero impedance loading. Ideal for sensistive acoustic pickups together with a +36dB maximum input capability, transformer isolated REAMPING  output offers multiple input-output configuarations with ALL inputs available, including polarity reverse, PASSIVE TONE selector allows ten contours (six from the U5 tone bank) including two passive high pass filters and two vocal-instrument enhanced passive AIR-LIFT low frequency curves.  Additional features include  a passive low pass hiss & buzz filter, a wide range, professional analog VU meter with expanded scale -30dB to +18dB with twin peak LED’s for fast signal capture, Color: Silver.

Focusrite ISA Two - 2-channel preamp, Lundahl LL1538 mic input transformer, Variable input impedance, Up to 80 dB of gain, Variable cut-off high-pass filter, 2x Mic In XLR, 2x Line-In 1/4" TR, 2x Instrument In 1/4" TR, Insert, Line output XLR, switchable impedance, LED meter, 48V phantom power, 19" 1HE

Avalon V5 Silver, 1 channel pre-amp, high-voltage design, Pure Class A, multi-purpose instrument, line and microphone pre-re-amplifier, low noise, high-gain, Pure Class A, microphone preamplifier with dual impedance ideal for ribbon-dynamic and high level condenser microphones, 10 meg.Ohms instrument DI input with zero impedance loading. Ideal for sensistive acoustic pickups together with a +36dB maximum input capability, transformer isolated REAMPING  output offers multiple input-output configuarations with ALL inputs available, including polarity reverse, PASSIVE TONE selector allows ten contours (six from the U5 tone bank) including two passive high pass filters and two vocal-instrument enhanced passive AIR-LIFT low frequency curves.  Additional features include  a passive low pass hiss & buzz filter, a wide range, professional analog VU meter with expanded scale -30dB to +18dB with twin peak LED’s for fast signal capture, Color: Silver.

The PRE-573 MKII is a one width module for the api 500 format that has the sound and the features that made the PRE-73 so successful and a few additional ones. The circuit still uses the preamp and output section from the classic 1073-module, adapted to work in the api rack format. It has a total gain range from -10 to +80 dB. The 20 – 70 dB range is handled by a turn switch and there is a separate toggle switch to select an additional 5 or 10 dB gain. The input can be configured to accept line level signals by another switch, the gain is then lowered by about 30 dB and the input impedance increased to about 10 kohm.The input impedance of the mic input mode can be switched between 1200 and 300 ohm. Phantom power and phase reverse is also selectable by front panel switches. An added feature, using the same circuit as in the PRE-73 DLX, is the active DI-input with a high input impedance of about 1,5 Mohm. The output signal from the active DI circuit passes through the input transformer for some extra character.The DI-input is very flexible since it can be changed to a purely passive one by a front panel switch. The DI input is then exactly the same as in the PRE-73 MKIII where the signal is feed directly into the second gain stage, bypassing the transformer and with an input impedance of about 100 kohm.These two DI-options makes it possible to get different tones from electric instruments and the passive DI input mode is more suited for injecting active units like sound modules. A new feature is the switchable AIR mode that adds a boost above 10 kHz that peaks at 6 dB around 30 kHz. A simple but effective signal and overload indicator is offered by a single LED that starts glowing red at about +4 dBu and then increases its intensity up to the maximum output level.The PRE-573 MKII has a dedicated insert connector at the back allowing it to interface with other GAP 500 modules. The insert can be activated by removing a jumper connector at the back of the module.The EQ-573 consists of the inductor based high pass filter section and the 3-band eq section from the classic 1073 module with some added frequencies. These two modules together will offer a fully fledged 1073-module in a compact format at a very low cost.There is a second jumper at the back of the module that selects 600 ohm termination on the output. The standard mode is termination on, since it gives the flattest response when the PRE-573 MKII is used with modern line inputs that typically has an input impedance of 10 kohm or more. The user can chose to remove the jumper and deactivate the termination resistor, this will increase the level above 10 kHz and create a peak in the response for an even more pronounced “Air” effect. The output is transformer balanced and fully floating and can drive a 600 ohm load up to level of about 28 dBu.

The ISA828 eight-channel microphone preamplifier provides eight original ISA transformer-based preamps in a single robust 2U chassis, offering the Focusrite signature sound at its lowest cost per channel to date. Eight ISA series transformer-based preampsNew eight-channel 192kHz A-D converter Convenient 25 pin D-type connectors Switchable impedanceDirect instrument inputsInserting available on every channel High pass filter, phase reverse and phantom power Six LED input meter

Empirical Labs EL9 Mike-e, digital controlled Mic Pre-Amp with compressor, Instrument Input, Phase Switch, Freq. Response is 3 thomann Hz to 200 kHz on (No CompSat). CompSat is 3Hz - 150Khz. Optional Transformer output is 6Hz–80kHz, Signal to Noise - 130 dB signal to Noise.at 40dB gain. Maximum output is +28dBu, Distortion Ranges between .0006% and 15% depending on mode and settings, Transformer thomann coupled Input, Active and Transformer Outputs available, Input Impedance is 600 Ohms. Output impedance is less than 38 ohms., Attack/Decay Ranges - .9 - 100mS attack. .15 - 1 Sec., Power Consumption 15 Watts Max.

Universal Audio 4-710d Twin-Finity, four-channel microphone/line preamplifier, Dual-path 285-volt Class-A tube and transimpedance solid-state preamps, Phase-aligned tone-blending of tube and solid state circuits, selectable 1176-style compression circuitry on each channel, four additional line inputs feeding eight channels of pristine analog-to-digital conversion. 24-bit A/D conversionsample rates up to 192 kHz48 Phantom Power per Channel enableDigital output via dual ADAT optical and AES/EBU DB-25 connectors8-channel soft limiter (switchable for all channels)20Hz-100kHz +/- 0.2dBu, max. Gain +70dBu4x Mic-In XLR, 4x Line-In XLR4x Line-In TR 1/4", 4x Hi-Z In4x Send/Return (1 per Mic-Channel)4x Line-Out XLR, 19" 2HE

The ISA microphone pre-amplifier was first introduced back in 1985. This transformer-based pre-amplifier formed the first half of the ISA110 mic-pre and EQ module on Focusrite's critically acclaimed Forte console. This console, and the later Studio console were hailed by many as the finest sounding consoles ever built. The ISA microphone pre-amplifier went on to form the cornerstone of all ISA and RED Focusrite products.  The topology has never changed, except for the addition of a variable impedance circuit, allowing ISA users to either perfectly match the pre-amp with any microphone, thus maximizing level, or to use different settings creatively to shape the sound of the microphone being used. The original ISA110 setting was supplemented by three further impedance settings. The Focusrite pre amp is renowned for its transparency, but there's also that subtle warmth that transformer core saturation contributes. This seeming contradiction of warmth plus beautifully open, unrestricted high frequencies, is a classic hallmark of the mid 80's Focusrite designs.           FEATURESISA Series Transformer-based Pre-amplifier Flexible Independent D.I. Channel Switchable Impedance Optional Stereo 192kHz ADC Rugged Custom Flight Case Headphone Output with Volume Control Dedicated Insert Point

The WA-412 provides 4 channels of classic American console preamps in a sleek 1RU design. This style of preamp is often referred to as "the sound of Rock n' Roll" for its BIG punchy low end and smooth open top end. The price/performance ratio of the WA-412 is almost unfathomable to the experienced studio engineer who has possibly paid much more for preamps of this style during their career. Featuring fully discrete socketed 6-pin opamps and custom wound Altran USA input and output transformers, the WA-412 leaves nothing to be desired. If you are looking for multiple channels of world class tone in an affordable package, the WA-412 is the right choice for you.Inspiration behind the WA-412.When I first started holding regular studio sessions years ago I always desired to have more channels of high-end mic pre's. I could only afford to have one or two in my studio at a time, which was never enough to record a full band or drummer. I knew very well that if signals were not recorded well "on the way in" they wouldn't be salvageable later, but my budget constrained me.  Because of this so many of the sources were recorded through poor-quality mic preamps.  If the WA-412 was available back then I likely wouldn't have had to settle for poor, low-quality tone. The WA-412 was designed "for the people" (if you will) and we believe it will become a serious work-horse in many professional and home studios. - Bryce Young (founder)More features.The WA-412 has all of the features one would expect from this style of preamp... and more. Output Trim is available on every channel for precise control and creative gain structuring. A Tone switch (transformer input impedance) is also available on each channel, which allows you to choose between a warm and punchy classic console tone, or go for a more open & neutral sound.Better components.Each channel utilizes a fully discrete socketed 6-pin opamp that can be swapped with other opamps. Discrete opamp circuitry is known for its high headroom and low distortion characteristics and has much to do with the coveted sound of these classic console preamps.  All input and output transformers that are made in the USA by high-end transformer manufacturer, Altran. We worked closely with Altran to create unique transformers that extend the low frequency response of these classic preamps. The transformers also use a vintage winding technique that produces a very distinct smooth BIG character. Carefully choosing the WA-412 components has resulted in an amazing four channel ‘workhorse’ preamp/DI that performs at the highest levels, while still adding vintage console magic to your signal.Specificaions:4 Channel Microphone Preamplifier + Instrument DIFully discrete, transformer coupled, through-hole component topologyAltran USA custom wound, premium input and output transformersX520 discrete op-amp in every channel, socketed for convenience. Can be user-replaced with most 6 pin, discrete op-amps for varying flavor & tone65db of gainInputs - Microphone XLR & Active Instrument 2Meg ohm HI-ZOutputs - Transformer balanced XLR & TRSTONE button input impedance - Switches from 600 ohms to 150 ohms (affects the tone of both the mic and HI-Z inputs)-20db pad - pads both mic and instrument DI inputsSelf noise:

The 3u 19" Earlybird 4 has a unique valve design, in that it uses Class A bias valves in a push-pull circuit.Company founder and chief designer Vic Keary believes that this is one of the finest pre-amplifiers available today, and despite their use for distortion in poweramps, valves have better distortion and lower noise than solid state amps. Due to specially designed Sowter transformers the Earlybird 4 boasts well under .01% distortion, as Vic explains "it's like connecting a pair of wires with gain to your mic, it's so clean!"It has a very high output level of +32dB and if desired, 2nd order harmonics can be introduced by increasing mic gain and reducing output gain.The unit has switched gain controls with a maximum of 62dB of mic gain and a variable output along with pads, phase and stepped filter. A pair of meters can be switched between 1 & 2 and 3 & 4.

The Earlybird 2.2 is a two channel all valve pre-amp employing a balanced push-pull circuit, which as far as we know, is unique in this application. The use of this type of circuit gives very low noise and plenty of headroom with minimal distortion. These factors coupled with a switchable input impedance will mean the user can get a very natural interpretation of whatever sound the microphone is picking up, whether the mic is valve, ribbon, moving coil or FET. The Earlybird 2.2 retains all of the features of the previous Earlybirds. We have added an extra pair of inputs to allow permanent connection to a Pullet EQ. In addition the active EQ section now has switchable frequencies on the mid and bass lift sections. The Gain controls have now been simplified and incorporated into a Function switch. 

The Rooster is a valve based design mic/line & DI pre-amp with EQ and a distortion section based around the same 5725 valve used in the ever-popular Culture Vulture.INPUT STAGEThe input stage uses a custom 1200-ohm input Sowter transformer and an ECC81/12AT7 valve.EQ SECTIONThe neatly laid out EQ section has all the Boost or Lift controls on the left, with a broad bass lift control, peaking at 60Hz, and a selectable mid/high lift at 2.5k, 4k ("bell" shaped) and 7k (shelving) respectively. All the Cut controls are on the left hand side, the mid cut is 700Hz, the 6 position bass cut is straight off the Earlybird 2 pre-amp. There is also a switchable LPF ( low pass filter ).'ATTITUDE' DISTORTION SECTIONThe same 5725-distortion tube which is employed in the Culture Vulture is used in the new Rooster. It offers a subtle distortion characteristic in the triode position, more so than a Culture Vulture due to the higher HT voltage, and so has a very low (about 0.01%) distortion when the 'Attitude' control is set to 1. In the pentode mode it generates more 3rd harmonic distortion. Distortion can be pretty radical when the Attitude control is to 'Max' and the input is high.OUTPUT SECTIONThe output valve is ECF80 which combines high output with low impedance (less than 100 ohms). There is +48v phantom power, and phase reverse. The output is unbalanced as standard but a balancing transformer option that is used in the Culture Vulture Mastering will be available.

Advances in digital recording technology are providing users with tremendous power and flexibility for increasingly less money. All too often, however, the audio quality of these systems is limited by their input stages. Many users who demand the power and flexibility of today’s recording technology find themselves yearning for the warmth and tone of yesteryear’s hand-built analog circuitry.         FEATURESClassic Sound of the Legendary 610 Modular ConsoleVariable Input Gain and Output LevelsUltra Quiet OperationMic, Balanced Line, and Hi-Z InputsMultiple Impedance SettingsClassic EQClassic 1176LN CompressionStereo Interconnection via 1176-SAUse Mic Pre & Compressor Seperately ("Split") or in Series ("Join")

A 1073 style preamp with 3-band inductor based equalizer with high quality components and build quality.

DAW system front end / simple 8X2 USB interface / remote recording / high-end sound reinforcementFrom 25 years experience of creating acclaimed professional audio products, comes the latest evolution of our mic preamplifier design: the m108. With eight channels of our transparent, musical mic preamplification, state of the art A/D conversion, multiple digital output formats, and flexible local or remote controlled operation, the m108 is a vital addition to any modern audio production environment.Unrivaled PerformanceBased on the acclaimed success of our m802 remote controlled mic preamplifier, the m108 distills the best of these achievements into a sleek, elegant 1U chassis design. Our transformerless, transipedance mic preamp design is unmatched in its ability to effortlessly resolve complex sonic waveforms, resulting in recordings of amazing clarity and depth. Integrated A/D conversion delivers digital signals to the workstation that are pure and beautiful. Latest generation s-Lock PLL ensures pristine, jitter free sample clock when clocking from external word clock or Dante clock. And an asynchronous mode USB interface provides the best possible jitter performance when connected to a computer.Simple OperationA push-button rotary encoder is used for navigating and operation, with a user interface that is simple and intuitive. Dedicated push-buttons are assigned to core functions: 48V phantom power, phase reverse, channel grouping and meter peak clear. A crisp OLED screen displays complete system information, including channel gain settings, metering, peak status, and the system setup menu.Out of the box, the m108 is ready to go as a stand alone mic preamp / ADC. With integrated serial or MIDI control, the m108 can be confi gured in large channel-count remote systems, with control from our existing m802 hardware remote control unit, from Protools™, or our forthcoming m108 control computer utility.  And an optional DANTE™ interface is provided for network audio configurations. The m108 control protocol is backward compatible with the m802 so you can add m108’s to an existing m802 system. 8 channels of balanced analog preamp outputs8 channels of transparent, musical mic preamplierWide gain range: -8 to 74dBRibbon mic mode8 channels of 192kHz ADC outputs via AES, ADAT and USB Class 2 / External Word clock in and outReference DAC and headphone amplier for low-latency monitoring of channel pairs or USB playback from a computerChannel 1 & 2 HI-Z inputs on front panelHigh contrast, wide viewing angle OLED display for all system parameters and setup menuCombination RS 485/422 serial / MIDI ports for control from existing m802 RCU or Protools™RJ45 Ethernet port for network controlExpansion slot for optional Audinate / DANTE™ network audio cardCooling fan for reliable operation in the harshest environmentsBuilt in 100-240VAC universal AC power supply5 year transferrable warrantyMade in the USA

The small version of the PRE-73 offers the same sound as its big brother in a super-compact 4.75" chassis at an unbeatable price. Thanks to the insert jack on the back, the manufacturer's EQ units can be easily combined with the Preamp. In addition, a DI input is located on the front, so that instruments can be preamplified in addition to all common microphone types. The Mk II also offers the user a 2-stage high-pass filter and the popular Air EQ in 2 stages. With a subtle boost at 30kHz, the audio material is significantly upgraded; it sounds more refined, HiFi-like and gets a pleasant presence in the mix.Due to the high level of low-noise preamplification, the PRE-73 is also suitable for low-level dynamic microphones such as the Shure SM7B, the Electro Voice RE20 or ribbon microphones.

O νέος τετρακάναλος λαμπάτος προενισχυτής μικροφώνων Manley Force Quad Mic Preamp απο την θρυλική Manley  είναι βασισμένος στο περίφημο channel strip  Manley Core. Διαθέτει, τον ίδιο έλεγχο στάθμης εισόδου και την ίδια switch control(διάταξη διακόπτών) , (μείον μια mic/line είσοδο ) .Δανείζεται απο τον Core επίσης τον μετασχηματιστή Mic εισόδου και το 12AX7 «vacuum tube gain stage» .Η κύρια τεχνική διαφορά μεταξύ των δύο μονάδων είναι το MOSFET “white follower” , τεχνολογία νέα για την Manley . Διαθέτει επίσης το ίδιο Entrodev PSU με τον Core .Χαρακτηριστικά:Τέσσερα κανάλια - προενισχυτών μικροφώνουΕίσοδος μικροφώνου ( XLR ) , Hi Ζ μέσο Direct Input ( TRS ) ανά κανάλι .Mετασχηματιστή Manley στην είσοδο μικροφώνου .Class A Vacuum Tube Gain-Stage .Stage εξόδου MOSFET “white Follower”

Like the API 3124+, the 3124V is a high quality, compact, 4-channel mic preamp. It is equipped with the RE-115 K mic input transformer and the proprietary output transformer found in all API mic pres and throughout the API product line. Additionally, the 3124V offers Variable Output Level Control and switchable 3:1 output transformer selection. The unit has an internal 48-volt phantom power supply, which is switchable for each channel, as well as -20dB pad switches that affect both the mic and Hi-Z instrument inputs, both located on the front panel.The 3124V also features up to 65dB of gain. Additionally, the Hi-Z front panel inputs feed directly to the op amps, which allow a low level input such as a guitar or bass to be amplified without a matching transformer or direct box. These Hi-Z inputs can take levels as high as +20dBu, making them perfect for keyboards and other high level devices. The mic preamp outputs are on rear panel male XLR connectors.Features:Classic API Circuit DesignUses API 2520 Op AmpsVariable Output Level Control3:1 Output Transformer Tap SelectionFour female XLR mic inputsFour front panel 1/4" Hi Z instrument inputsFront panel polarity switchesFront panel -20dB pad switchesFront panel mic/instrument switchesFront panel 48V power switches

Ιn 2000, the model 101 helped fuel a revolution. When people took professional recording into their own hands, it was there with all of the quality and performance of a high-end mic preamplifier, but with a price that made it available to the masses. 8 years later, and the cause moves forward with the newly redesigned m101.With its impressive list of new features, the m101 is ready to give any mic preamplifier a run for its money. Consider the new audio signal path with 0.5% precision metal film resistors, 12 position gold plated rotary gain switch, a built-in universal AC input module, or our exclusive RIBBON mic mode - and the picture becomes clear: This is now a fully professional, state of the art precision mic preamp that roundly outperforms anything in its class. All this at the same affordable price of the original model 101.  From podcast to concert hall, the m101 brings the build quality, refinement and performance to revolutionize any recording facility Fast and musical transimpedance architectureUpdated audio path with 0.5% precision metal film resistors New 12 position gold plated rotary gain switchHigh performance output line driver amplifier and HPF amplifierNew Ribbon mic mode (also great for dynamic mics)-  Relay bypass of phantom power decoupling capacitors, increased input impedance, and 48V lockoutWider 10-75dB gain range Enhanced RFI interference suppression Three output connectors: XLR balanced, TRS balanced and Ό” unbalancedBombproof laser-etched black anodized frontpanelSealed gold contact relay for Hi-Z input switching Built in power supply / no wall-wart! Led indicators for +48V, Ribbon mode, and HPFFive year warranty on parts and labor Made in the USA

A 1073 style preamp with selectable two frequency high pass filter, two position air eq and output pad to allow overdriving the output transformer and high quality components and build quality.

If there’s one preamp-eq that professional engineers would unanimously agree has defined the tone of pop/rock records for the last 50+ years, it would most definitely be the venerable 1073.  The 1073 has been massively used in recording and live applications for decades and is still considered to be the “Holy Grail” of preamp(eq’s) today.  The Warm Audio “WA73 Family” provides single and dual channel re-creations of this classic British preamp (with & w/out EQ), that each pay careful and humble homage to the original circuit.After years of R&D, careful reverse-engineering, and countless hours of auditioning, the WA73 Family has been born! The WA73 Family shines on all types of microphones and sources including; vocals, acoustic/electric guitars, bass, drums, percussion, orchestras, keyboards, and even as a tone shaping tool to run partial or complete mixes through.  With 80dB of gain, a fully discrete Carnhill Transformer balanced signal path, and versatile 3 band inductor EQ (on WA73-EQ and WA273-EQ products) - there’s no recording, mixing or engineering task the WA73, WA73-EQ, WA273, and WA273-EQ can’t handle.A LOOK INSIDEHand Wired, Hand AssembledThe classic 1073 was hand-wired and so is the WA73 Family!  Guru’s claim that a portion of the 1073’s classic tone can be attributed to the hand-wired nature of the build.  The entirety of the WA73 Family of preamp(eq’s) is authentically hand-wired and hand assembled, including the pcb components that are all populated by hand.UK Custom Carnhill Transformers1073 enthusiasts unequivocally get excited about the component history in these classic circuits.  The signal transformers are a common topic of conversation.  The classic vintage units used various versions of transformers throughout the years, and the most coveted were the very first versions made by Marinair Radar.  Marinair Radar Transformers are regarded as the most desirable 1073 choice due to their fluid and forgiving nature.  They saturate sweetly when pushed, and have been known to make engineers cry when they hear how beautiful their mixes sound through them!  Warm Audio worked closely with Carnhill Transformers of Cambridgeshire, UK, to design faithful replicas of these most coveted, early version transformers.  The entire WA73 Family proudly utilizes these fantastic Carnhill Transformers.  We at Warm Audio have not yet heard a modern day 1073-style preamp(eq) sound as close to the early vintage 1073 design as do our WA73 Family units with these beautiful custom Transformers.Capacitors & Signal Path:An important part of these classic British circuits not often discussed is the different styles of capacitors and output transistor used.  We found it important to maintain integrity to the original design by using tantalum and polystyrene capacitors in the signal path and an output transistor choice that is much smoother in the high gain settings than what is typically found in modern 1073-style replicas.UK Blore Edwards Switch-Pots (WA73-EQ & WA273-EQ only):A great sounding 1073-style circuit should be just as reliable as it is great sounding.  The complex dual concentric switch potentiometers in the EQ sections of the WA73-EQ and WA273-EQ are made in the UK by Blore Edwards who manufacture military spec switches and potentiometers.  The use of Blore-Edwards components is no small inclusion for 1073-style preamp-eq’s in this price range            SPECIFICATIONS

The 1073 Legend Lives in Warm Audio's Splendid WA273The legendary 1073 wrote the book on characterful mic preamplification. This venerable circuit helped define the punchy sound of '70s rock — and countless recordings and live concerts ever since. Today, this coveted tone can be yours for a song, with the Warm Audio WA273 mic/line/instrument preamp. In both design and performance, the 2-channel WA273 pays homage to the revered British console lineage that started it all. Throughout the audio industry, the 1073 is considered the holy grail of preamps, with a rich, sweet, and bold tonality that's ideal for making audacious statements with your music. After years of R&D, painstaking reverse-engineering, and countless hours of listening, Warm Audio captured the sonic essence of this classic perfectly in their boutique WA273. With 80dB of gain and a fully discrete transformer-balanced signal path, the sound is a revelation: harmonically rich bottom end, focused midrange, and slightly resonant highs.Handcrafted with top-quality partsBoasting weapons-grade build quality with discrete, handwired Class A circuits and top-drawer parts such as UK-made Carnhill transformers, the WA273 has 80dB of gain on tap so you can capture subdued sources with your favorite ribbon mic. Your ribbons and condensers will sound heavenly; you'll even be gobsmacked when you hear how authoritative your dynamic mics sound. Cranking the input stage and backing off the output gain enhances your tracks with tasty vintage-style coloration. Topping off the feature set are per-channel instrument jacks, polarity reverse, 48V phantom power, and switchable impedance for tonal variation and to optimally match a variety of microphones.Optimize every source — and microphoneThere is no source that doesn't sound amazing through the Warm Audio WA273. With judicious mic selection and placement, drums are larger-than-life; DI bass and keyboards sound massive and synths become trance-inducing; electric guitars soar; vocals rule. Pianos and acoustic guitars are resplendent. Orchestral instruments — strings, woodwinds, brass, and percussion — achieve ineffable lushness and dimension. You can even use the WA273 as a tone-shaping tool to run stems or complete mixes through. Hear what the WA273 can do for your own recordings. It's transformative.UK Custom Carnhill transformers1073-loving engineers at Sweetwater perk up when the conversation turns to the component history of these classic circuits, and signal transformers are a frequent topic of discussion. Vintage 1073s used different transformer variants throughout their production run; but the most coveted were the very first ones made by Marinair Radar, due to their fluid and forgiving nature that saturates sweetly when pushed. They have been known to bring engineers to tears when they hear how gorgeous their mixes sound through them! Warm Audio turned to Carnhill Transformers of Cambridgeshire, UK, to design meticulous replicas of these most desirable early 1073 transformers. The results are stunning, and — to our ears — tantalizingly close to early vintage 1073sWarm left no stone unturnedA vital yet not-often-discussed component of these classic British circuits is the different types of capacitors and output transistors used. To maintain the integrity of the original circuits, Warm decided to use high-quality tantalum and polystyrene capacitors in the signal path and an output transistor choice that delivers smoother results at higher gain settings than what is commonly found in today's 1073-style preamps. All considered, Warm Audio's monumental effort to design a no-compromise product has paid off handsomely. You'll appreciate this every time you plug into the WA273 and hit record.Warm Audio WA273 2-channel Mic/Line/Instrument Preamp Features:Handwired, hand-assembled 1073-style preamplifiersFully discrete, Class A, transformer-balanced circuitryUK-made Carnhill Transformers80dB of gain handles any type of microphone, including low-output ribbonsResistor-stepped rotary gain switches for easy recallTone buttons change input transformer impedance for mic optimization and tonal shapingPolarity switches48V phantom power4-position inductor-based highpass filters, selectable for Off, 50, 80, 160, or 300HzXLR mic inputsLine-level TRS inputsTS Send/Receive insert jacksXLR and TRS line-level outputsDI instrument inputsOutput level controlsLED level indication metersRugged 19" rackmount chassisGround lift switchInternal IEC 115V/230V power inlet

The 1073 Legend Lives in Warm Audio's Splendid WA73-EQThe legendary 1073 wrote the book on characterful mic preamplification and EQ. These venerable circuits helped define the punchy sound of '70s rock — and countless recordings and live concerts ever since. Today, this coveted tone can be yours for a song, with the Warm Audio WA73-EQ mic/line/instrument preamp. In both design and performance, the WA73-EQ pays homage to the revered British console lineage that started it all. Throughout the audio industry, the 1073 is considered the holy grail of preamps and EQs, with a rich, sweet, and bold tonality that's ideal for making audacious statements with your music. After years of R&D, painstaking reverse-engineering, and countless hours of listening, Warm Audio captured the sonic essence of this classic perfectly in their boutique WA73-EQ. With 80dB of gain and a fully discrete transformer-balanced signal path, the sound is a revelation: harmonically rich bottom end, focused midrange, and slightly resonant highs.Handcrafted with top-quality parts Boasting weapons-grade build quality with discrete, handwired Class A circuits and top-drawer parts such as UK-made Carnhill transformers and Blore Edwards mil-spec, dual-concentric switch pots, the WA73-EQ has 80dB of gain on tap so you can capture subdued sources with your favorite ribbon mic. Your ribbons and condensers will sound heavenly; you'll even be gobsmacked when you hear how authoritative your dynamic mics sound. Cranking the input stage and backing off the output gain enhances your tracks with tasty vintage-style coloration. Topping off the feature set is an instrument jack, polarity reverse, 48V phantom power, and switchable impedance for tonal variation and to optimally match a variety of microphones.Optimize every source — and microphone There is no source that doesn't sound amazing through the Warm Audio WA73-EQ. With judicious mic selection and placement, drums are larger-than-life; DI bass and keyboards sound massive and synths become trance-inducing; electric guitars soar; vocals rule. Pianos and acoustic guitars are resplendent. Orchestral instruments — strings, woodwinds, brass, and percussion — achieve ineffable lushness and dimension. You can even use the WA73-EQ as a tone-shaping tool to run stems or complete mixes through. Hear what the WA73-EQ can do for your own recordings. It's transformative.Definitive British EQ The EQ section of the WA73-EQ adheres to the classic 1073 circuit topology. The vintage 1073 is the holy grail of EQ, and the WA73-EQ nails its sonics and behavior (complete with its fabled harmonic distortion). It's a three-band affair, with HF shelving at 10, 12, and 16kHz; midband peaking with selectable center frequencies at 360Hz, 700Hz, 1.6kHz, 3.2kHz, 4.8kHz, and 7.2kHz; and LF shelving, selectable at 35Hz, 60Hz, 110Hz, and 220Hz. A highpass filter, selectable at 50Hz, 80Hz, 160Hz, and 300Hz, lets you trim your signals of unwanted low end. If you've never worked with a 1073-style EQ before, all we can say is: you're in for a serious treat. It's worth noting that the original 1073 offered only a fixed 10kHz shelf, and the additional high-frequency flexibility afforded by the WA73-EQ is most welcome.UK Custom Carnhill transformers 1073-loving engineers at Sweetwater perk up when the conversation turns to the component history of these classic circuits, and signal transformers are a frequent topic of discussion. Vintage 1073s used different transformer variants throughout their production run; but the most coveted were the very first ones made by Marinair Radar, due to their fluid and forgiving nature that saturates sweetly when pushed. They have been known to bring engineers to tears when they hear how gorgeous their mixes sound through them! Warm Audio turned to Carnhill Transformers of Cambridgeshire, UK, to design meticulous replicas of these most desirable early 1073 transformers. The results are stunning, and — to our ears — tantalizingly close to early vintage 1073s.Warm left no stone unturned A vital yet not-often-discussed component of these classic British circuits is the different types of capacitors and output transistors used. To maintain the integrity of the original circuits, Warm decided to use high-quality tantalum and polystyrene capacitors in the signal path and an output transistor choice that delivers smoother results at higher gain settings than what is commonly found in today's 1073-style preamps. All considered, Warm Audio's monumental effort to design a no-compromise product has paid off handsomely. You'll appreciate this every time you plug into the WA73-EQ and hit record.Warm Audio WA73-EQ Mic/Line/Instrument Preamp and EQ Features: Handwired and hand-assembled, single-channel 1073-style preamp/EQFully discrete, Class A, transformer-balanced circuitryUK-made Carnhill Transformers80dB of gain handles any type of microphone, including low-output ribbonsResistor-stepped rotary gain switch for easy recallTone button changes input transformer impedance for mic optimization and tonal shapingPolarity switch48V phantom power4-position inductor-based highpass filter, selectable for Off, 50, 80, 160, or 300HzInductor-based 3-band equalizationLow-band boost/cut at 35, 60, 110, or 220HzMid-band boost/cut at 360, 700, 1600, 3200, 4800, or 7200HzHigh-band boost/cut at 10, 12, or 16kHzAdditional high-band frequency EQ points added (compared to vintage 1073)XLR mic inputLine-level TRS inputTS Send/Receive insert jacksXLR and TRS line-level outputsDI instrument inputOutput level controlLED level indication meterRugged 19" rackmount chassisGround lift switchInternal IEC 115V/230V power inlet

PreSonus’ popular Class A XMAX preamps are widely lauded for their clarity and transparency. Our tube preamps are beloved for their warm, smooth sound. With the Blue Tube DP V2 dual-path mic/instrument preamp, you get both types of high-quality sound in one unit.Now we’ve improved on the classic unit with the BlueTube DP V2. The solid-state path now feeds PreSonus’ top-of-the-line Class A XMAX™ mic preamplifier with 80 dB of variable gain—an upgrade from the original BlueTube DP’s solid-state stage.You still get all the secondary features you expect in a professional-grade preamp: 48V phantom power, an 80 Hz high-pass filter, -20 dB pad to control hot input signals, and a polarity-reverse switch. Each channel has an illuminated VU meter so you can visually monitor your input levels.A Tube Drive control provides a wide range of sounds: when it’s clicked off, you’re using the solid-state preamp for quiet, transparent amplification; when it’s engaged, your signals flow through the tube preamp, and you can achieve anything from gentle warmth to edgy distortion.Specifications:2 input channels, each with:High-headroom Class A XMAX™ mic preamplifier with 80 dB gain range12AX7 vacuum tube gain stageTube Drive tube-saturation control48V phantom power80 Hz high-pass filter-20 dB pad to reduce hot input levelsPolarity-reverse switchIlluminated analog VU input-level meterInput/Output2 balanced combo mic/unbalanced instrument inputs2 balanced XLR main (L/R) line outputs2 unbalanced ¼” main (L/R) line outputsPhysicalCompact 1/2U chassisExternal 12 VDC, 1A power supply

At PreSonus, we’ve been designing preamps for a long time, and we always focus on audio quality first. So when we decided to upgrade our popular TubePre V2, we focused on improving an already high-quality sound—without jacking up the price. Like the originalTubePre, the new version is a fully professional tube preamp, with a dual-servo (no capacitors) gain stage that lets you boost the program signal to smoking hot levels without significantly increasing the background noise. Discrete components and high-voltage operation offer dynamic range and detail not found in other single-channel tube preamps in its class.Housed in a rugged case, the TubePre V2 rear panel sports separate unbalanced, ¼” instrument and balanced, XLR mic inputs and unbalanced ¼” and balanced XLR line outputs. We’ve included all of the extras you need for professional operation including a high-pass filter, phantom power for condenser mics, polarity reverse switch, and a backlit VU meter.