BURL Audio B4 MIC PRE

Hear Technologies Switch Back M8RX - A Preamp and Multi-channel Headphone Monitoring Interface
With intuitive design and robust capabilities, the Switch Back M8RX™ is actually two products in one. This gives the musician a choice to play live, record, or monitor their mix all in one single tool.

The M8RX is a personal interface to be used for live sound or recording, and also a multi-channel headphone monitoring system. While compact in size, the M8RX gives individuals options to use it in multiple ways, such as a mini recording studio setup or a simple communication system.

GC Audio – Gyraf Audio GY 4.5 Inherit Cartridge
GC Audio is proud to introduce a new preamp that extends the GC Audio cartridges family - based on a, now classic, design by Jakob Erland, founder of Gyraf Audio and designer of many high-end studio gears like the G9 preamplifier or the G22 compressor.

Jakob Erland is universally recognized as one of the leading experts in tube hardware design. He is also very popular in the DIY community where he provides free help. The GY 4.5 Inherit cartridge is, as its name implies, a single channel of the famous Gyraf Audio Gyratec 9 preamp. Faithful to the original in every detail.

GC Audio GY 4.5 is a genuine tube preamplifier: Coming with two ECC82 running on high voltage, no solidstate component in the signal path, input/output balanced by high-end Lundahl transformers. The goal with this design is to achieve everything from a completely clean to a possibly very colorful sound imprint. All under the total control of the user. The most important aspect of this circuit is its very slow transition to overload - it has a sweet spot that seems to last for ages.

We recommend it e.g. for vocals, where by raising gain and lowering output volume, you can get a nice dense analog saturation without overloading your converters. This cartridge is a real creative tool.

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

Lindell Audio 18Xs MKII is a one channel transformer coupled Microphone Preamplifier, DI, Line Amplifier and Passive Pultec Equalizer. It’s an Class A design based upon our Hybrid amplifiers. (It can be upgraded with our Vintage OPA)

The Equalizer is our take on the magical classic Pultec design. It’s got 15db boost of the creamiest high end you’ve ever heard and the most punchy low end heard the 21th Century.

We have also incorporated our famous ”Mix Knob” from the 17X compressor. This means that you can parallel equalize your line input. This gives you more flexibility and a way of creating new tones….

GC Audio Inherit Rack + Tube Heat a genuine vaccum tube preamplifier inspired by famous vintage tube preamps.

• Twin high voltage ECC82, no discrete component in the signal path, balancing and unbalancing by transformers
• The goal is to obtain all the warmth that this technology allows in order to obtain a very colorful sound. We recommend it especially on vocals
• In addition, by raising gain and lowering the output volume to stay on an output level below 0 dB Vu,

By raising input gain and lowering the output volume to stay below 0 dB Vu, you can obtain a nice analog saturation without overloading your converters. This cartridge is a real creative tool.

GC Audio Inherit Rack is an innovative modular microphone and instrument preamplifier that allows, thanks to different Hot-swappable Solid State or tube cartridges, to benefit from several types of preamplifiers, offering different tones and sound characters, in a single 2U 19" rack allowing to compare a wide range of sounds instantly.

Currently, 12 cartridges are available (more coming soon). They all offer a class A circuit:

• RE 15: Reissue of the Amek RN15 preamp, unbalanced and balanced by a very low noise Op-Amp
• RE 11: Modern, high-gain monolithic preamplifier
• RE 73: Reissue of the Neve 1073 preamp, unbalanced and balanced by an original Carnhill VTB9045 shielded transformer
• RE 98: Reissue of the Amek 9098 preamp, very low noise discrete components, balanced by Lundahl 1585 transformer
• RE VR: Improved reissue of the NEVE VR console preamp, de-balanced with a rebuilt Original TF10015 transformer, preamplified and balanced with a very low noise Op-Amp
• RE 4K: Reissue of the SSL 4K E Series preamp, unbalanced by an original Jensen 115 transformer, preamp balanced by very low noise Op-Amp
• Tube Heat: true high voltage tube preamp, unbalanced by transformer, no discrete components in the signal path
• Graham Langley: Designed in collaboration with Graham Langley to create a preamp offering the most focused and accomplished preamp with its own unique signature, using the unique capabilities of the Inherit system
• GY 4.5: Genuine tube preamplifier: Coming with two ECC82 running on high voltage
• Color Riser: module créatif complet offrant 3 étages de préamplification micro/ligne, traitement harmoniques et saturation à lampes
• Compressor Riser: ue chaine complète de processeur de signal offrant 2 étages de préamplification micro/ligne et le presseur VCA complet de l'Analog Riser
• Equalizer Riser: ue chaine complète de processeurs de signal offrant 2 étapes, Préamplification  micro/ligne et égaliseur paramétrique 3 bandes issu de l'Analog Riser

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

ACME Audio The Motown Tube Preamp
The year is 1966. Deep in the heart and soul of Detroit, a young, ambitious chief Motown engineer is tasked by legendary producer Berry Gordy to design a better way to record multiple guitar and bass instruments at once, with minimal bleed and no isolation.  His solution:  the 5-channel Motown input box – dubbed the “Motown guitar amp” by its creator.  James Jamerson’s magnificent performances, as well as Dennis Coffey, Bob Babbit, Robert White, Joe Messina and many more, were captured through this circuit from 1966 to 1972, and now, the MTP-66 Motown Tube Preamp is available in limited quantities to capture all of your most important tones.

GC Audio Inherit Rack + RE 15 Cartridge an ultra low noise preamp reissue of the famous British mixing board, the Mozart RN15, having received the following improvements:

• SSM2212 twin transistors with very low noise
• Low noise Op-Amps
• Great care taken with the PCB routing

Recommended if you are looking for a very quiet and neutral preamp.

GC Audio Inherit Rack is an innovative modular microphone and instrument preamplifier that allows, thanks to different Hot-swappable Solid State or tube cartridges, to benefit from several types of preamplifiers, offering different tones and sound characters, in a single 2U 19" rack allowing to compare a wide range of sounds instantly.

Currently, 12 cartridges are available (more coming soon). They all offer a class A circuit:

• RE 15: Reissue of the Amek RN15 preamp, unbalanced and balanced by a very low noise Op-Amp
• RE 11: Modern, high-gain monolithic preamplifier
• RE 73: Reissue of the Neve 1073 preamp, unbalanced and balanced by an original Carnhill VTB9045 shielded transformer
• RE 98: Reissue of the Amek 9098 preamp, very low noise discrete components, balanced by Lundahl 1585 transformer
• RE VR: Improved reissue of the NEVE VR console preamp, de-balanced with a rebuilt Original TF10015 transformer, preamplified and balanced with a very low noise Op-Amp
• RE 4K: Reissue of the SSL 4K E Series preamp, unbalanced by an original Jensen 115 transformer, preamp balanced by very low noise Op-Amp
• Tube Heat: true high voltage tube preamp, unbalanced by transformer, no discrete components in the signal path
• Graham Langley: Designed in collaboration with Graham Langley to create a preamp offering the most focused and accomplished preamp with its own unique signature, using the unique capabilities of the Inherit system
• GY 4.5: Genuine tube preamplifier: Coming with two ECC82 running on high voltage
• Color Riser: module créatif complet offrant 3 étages de préamplification micro/ligne, traitement harmoniques et saturation à lampes
• Compressor Riser: ue chaine complète de processeur de signal offrant 2 étages de préamplification micro/ligne et le presseur VCA complet de l'Analog Riser
• Equalizer Riser: ue chaine complète de processeurs de signal offrant 2 étapes, Préamplification  micro/ligne et égaliseur paramétrique 3 bandes issu de l'Analog Riser

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

Chandler Limited Germanium Pre/DI - One Channel Germanium Preamp/DI
Chandler's newest series of units starts off with the GERMANIUM pre amp. A completely new design by Chandler Limited designer Wade Goeke that uses classic germanium transistors in all class A, transformer balanced, circuits. The use of germanium devices opens a whole new sound palate not found in any pro audio equipment currently manufactured.

GC Audio Inherit Rack + RE 15 Cartridge a reissue of the famous British mixing board's preamp, the NEVE VR.
Many improvements have been made to achieve better results.

• Low noise Op-Amps
• Great care on PCB Routing
• Original Belclare TF10015 transformer balanced
• Output symmetry manually calibrated to achieve optimized values

Recommend for very punch recording and warmth on low end.

GC Audio Inherit Rack is an innovative modular microphone and instrument preamplifier that allows, thanks to different Hot-swappable Solid State or tube cartridges, to benefit from several types of preamplifiers, offering different tones and sound characters, in a single 2U 19" rack allowing to compare a wide range of sounds instantly.

Currently, 12 cartridges are available (more coming soon). They all offer a class A circuit:

• RE 15: Reissue of the Amek RN15 preamp, unbalanced and balanced by a very low noise Op-Amp
• RE 11: Modern, high-gain monolithic preamplifier
• RE 73: Reissue of the Neve 1073 preamp, unbalanced and balanced by an original Carnhill VTB9045 shielded transformer
• RE 98: Reissue of the Amek 9098 preamp, very low noise discrete components, balanced by Lundahl 1585 transformer
• RE VR: Improved reissue of the NEVE VR console preamp, de-balanced with a rebuilt Original TF10015 transformer, preamplified and balanced with a very low noise Op-Amp
• RE 4K: Reissue of the SSL 4K E Series preamp, unbalanced by an original Jensen 115 transformer, preamp balanced by very low noise Op-Amp
• Tube Heat: true high voltage tube preamp, unbalanced by transformer, no discrete components in the signal path
• Graham Langley: Designed in collaboration with Graham Langley to create a preamp offering the most focused and accomplished preamp with its own unique signature, using the unique capabilities of the Inherit system
• GY 4.5: Genuine tube preamplifier: Coming with two ECC82 running on high voltage
• Color Riser: module créatif complet offrant 3 étages de préamplification micro/ligne, traitement harmoniques et saturation à lampes
• Compressor Riser: ue chaine complète de processeur de signal offrant 2 étages de préamplification micro/ligne et le presseur VCA complet de l'Analog Riser
• Equalizer Riser: ue chaine complète de processeurs de signal offrant 2 étapes, Préamplification  micro/ligne et égaliseur paramétrique 3 bandes issu de l'Analog Riser

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

GC Audio Riser Color is a complete creative module offering 3 stages:
1- Preamp stage of our RE-11 cartridge, compatible with Mic/Line levels
2- Harmonic treatment stage of the brand's flagship: the Analog Riser
3- The saturator stage of our flagship: the Analog Riser

1) Preamp stage:
Gain Step -6 dB to +68 dB

2) Harmonic Stage:
• Harmonic generator setting
• Harmonic mix density setting
3) Tube Stage:
• Gain setting
• Saturator setting
• 4 stages of 12AU7

McAudioLab TP1tp - Class A Tube mic Preamp / DI - single channel
The MCAudioLab TP1tp is a class A tube mic preamp and DI designed to deliver pure vintage tone while maintaining the high quality sonic performance required in modern productions.

From pristine fidelity with just a touch of tube character to fat and punchy rock tones, the TP1tp provides a wide palette of tonal options suitable for a variety of sources and genres, be it vocals, bass, guitar, or any acoustic source in both classical and pop/rock contexts.

The GC Audio RE 4K cartridge for the Inherit Rack is a reissue of the preamplifier of the famous British mixing board, the SSL 4K E. Many improvements have been made to achieve better results.Low noise Operational amplifier

• Great care on PCB Routing
• Original Jensen 115 transformer balanced
• Output symmetry manually calibrated to achieve optimized values

We recommend it for sound engineer looking for very punch recording and warmth on low frequency.

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

Undertone Audio MPDI-4 Rack Unit
The MPDI-4 is as musical as it is powerful and flexible. It features 4 individual Mic Preamp/DI circuits housed in a single 1RU chassis.  With by-passable transformers, switchable output headroom, and adjustable THD characteristics, the sound of the MPDI-4 can range from astonishingly pristine to warm, thick, and harmonically colorful. It may well be the only preamp that is truly perfect for every situation!

BUZZ AUDIO MA-2.2BTX - Full Class A Microphone pre-amplifier with Lundahl LL1517 output transformers
A truly magical sounding microphone preamplifier that proves "clean does not need to sound clinical", now revamped with an updated user interface.

Functions are now controlled with illuminated push button switches with "clickless" operation, no more thumps on the output.
The gain pot has been replaced with a calibrated 24 position Elma switch for accurate stereo matching between channels. Buzz Audio has added a useful 19 segment peak output level meter. But, the original audio and power supply design of the MA-2.2 has been retained.

The MA-2.2BTX is supplied with high spec Lundahl LL1517 output transformers. When the transformers are fitted, the direct unbalanced output is still available on the rear panel via a 1/4" jack socket. When fitted, the transformer add a bit more warmth to the sound. (We can also offer the Lundahl amorphous core LL1684 transformer to special order).

VSP-2 Dual Mic Preamp 1976
The VSP-2 is VERTIGO SOUNDs 3rd BIG IMPACT DESIGN and is setting a new benchmark in microphone amplification.

The heart of this unit is Vertigo Sound 100% discrete Twin Op Amp circuit called the OPA (operational amplifier) 1976.

These "in house" engineered & built discrete amplifier stage is combined with Jensens world famous JT-16 Mic transformers and provide a smooth warm and defined sound from the lowest bass to the very top end of the sonic spectrum.The JT-16 transformer can handle very high input levels and provides a very linear phase behaviour because of low capacitance problems due to it`s low ratio of 1:2. Further the low ratio of the transformer forces the discrete OP Amp to provide most of the amplification in the VSP-2. This " full throttle","pedal to the floor" circuitry enables a unique, rich, full and characterful sound.

Overstayer Imperial Channel Model 8776A module is self powered, self-contained channel strip that can be used on its own (no chassis required) or as part of a larger framework for recording and mixing.

The 8776A features mic, line and instrument inputs, as well as filters, 4 band EQ, FET limiting and controls to shape and exploit the harmonic character of the circuitry throughout. Modules can be mounted vertically in dual, quad or 10 space rack-mountable chassis* (5RU high). Audio connections via XLR and TRS connectors with access to several points in the signal path.  

*Modules and chassis are sold seperately - Also available in Pair with a Free frame and metallic front cover transport protection.

GC Audio Inherit Rack + Graham Langley Cartridge co-founder of Amek and designer of many large format mixing consoles (Amek Mozart, Rembrandt, Angela, ... etc.).

A premium differential preamp composed of paired transistors and constant current sources. The unit is digitally controlled to isolate the analog signal path in the metallic  cartridge (and therefore separated from the radiation of the linear PSU). Common mode rejection and output balancing are manually calibrated to achieve optimized values. The resistive ratios are composed of low value in order to obtain an optimal EIN.

This preamp is perfect for user needing uncompromising sound pickup with a transparent and powerful result.

GC Audio Inherit Rack is an innovative modular microphone and instrument preamplifier that allows, thanks to different Hot-swappable Solid State or tube cartridges, to benefit from several types of preamplifiers, offering different tones and sound characters, in a single 2U 19" rack allowing to compare a wide range of sounds instantly.

Currently, 12 cartridges are available (more coming soon). They all offer a class A circuit:

• RE 15: Reissue of the Amek RN15 preamp, unbalanced and balanced by a very low noise Op-Amp
• RE 11: Modern, high-gain monolithic preamplifier
• RE 73: Reissue of the Neve 1073 preamp, unbalanced and balanced by an original Carnhill VTB9045 shielded transformer
• RE 98: Reissue of the Amek 9098 preamp, very low noise discrete components, balanced by Lundahl 1585 transformer
• RE VR: Improved reissue of the NEVE VR console preamp, de-balanced with a rebuilt Original TF10015 transformer, preamplified and balanced with a very low noise Op-Amp
• RE 4K: Reissue of the SSL 4K E Series preamp, unbalanced by an original Jensen 115 transformer, preamp balanced by very low noise Op-Amp
• Tube Heat: true high voltage tube preamp, unbalanced by transformer, no discrete components in the signal path
• Graham Langley: Designed in collaboration with Graham Langley to create a preamp offering the most focused and accomplished preamp with its own unique signature, using the unique capabilities of the Inherit system
• GY 4.5: Genuine tube preamplifier: Coming with two ECC82 running on high voltage
• Color Riser: module créatif complet offrant 3 étages de préamplification micro/ligne, traitement harmoniques et saturation à lampes
• Compressor Riser: ue chaine complète de processeur de signal offrant 2 étages de préamplification micro/ligne et le presseur VCA complet de l'Analog Riser
• Equalizer Riser: ue chaine complète de processeurs de signal offrant 2 étapes, Préamplification  micro/ligne et égaliseur paramétrique 3 bandes issu de l'Analog Riser

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

Buzz Audio QSP-20 - 4 channel Mic Pre
If you are looking for a versatile but cost effective outboard mic preamp for your project studio, then you've found it! We think the Buzz Audio QSP-20 represents excellent value for money and offers the professional performance of vintage brands without the vintage price tag. Using our proprietary True Class A circuitry and the exceptional Lundhal output transformers, the QSP-20 delivers a big honest open sound and is perhaps the best value Quad Studio Preamplifier available today.

BUZZ AUDIO MA-2.2B - Full Class A Microphone pre-amplifier
A truly magical sounding microphone preamplifier that proves "clean does not need to sound clinical", now revamped with an updated user interface.

Functions are now controlled with illuminated push button switches with "clickless" operation, no more thumps on the output.
The gain pot has been replaced with a calibrated 24 position Elma switch for accurate stereo matching between channels. Buzz Audio has added a useful 19 segment peak output level meter. But, the original audio and power supply design of the MA-2.2 has been retained.

Chandler Limited TG2 500 - 500 Series Preamp
Building upon the popularity of the company’s acclaimed TG2 Pre Amp / DI, the TG2-500 delivers the classic sound of the EMI TG12428 pre amp used in EMI/Abbey Road recording and mastering consoles in the late 60s and early 70s—in the company’s 500 series module form factor.

Using the identical TG2 circuit, transistors, and transformers, the TG2-500 delivers 10 – 60 dB of gain and uses a coarse gain control and a fine gain control as found on EMI consoles. The unit provides 300 and 1200 Ohm input impedance as on the TG2.

Coil Audio CA-286S 2U Microphone / Line Tube Amplifier
The CA-286S single channel preamplifier is a standalone single channel 2U version of our larger CA-286 preamp module but with onboard power and a more streamlined control layout. It boasts the exact same European style circuit, tubes, transformers, and high-end components as its PS6 sibling but with a more elegant and user-friendly design. Simply put - The CA-286S is the easiest way to get those Hi-Fidelity EF86 tube tones into your studio.

Step Back – Here come the Burl Audio B1
Introducing the B1 and B1D Microphone Pre Amps from Burl Audio. Based on the API 500 series form factor, the B1 was designed to compliment the B2 Bomber ADC, and give you multi-channel pleasure. With the proprietary BX3 input transformer and BX2 output transformer, the B1 Mic Pre delivers warmth with depth and clarity.

The B1D is the same as the B1 except that it has an all iron BX4 output transformer giving it a more terrifying rock tone. An all discrete transistor, class-A, direct coupled, capacitor free circuit path, gives the B1 amazing punch on drums, beautiful tonality on guitars, and warmth with presence on vocals.

Coil Audio CA-70 Modular Microphone / Line Tube Amplifier
The CA-70 preamplifier module pays homage to the classic American two-stage circuit invented by Western Electric in 1913 and manufactured by multiple companys from the 1930's through the 1950's – most notably RCA, Gates, and Langevin. This old octal tube circuit has a huge thick tone and is what many consider to be the quintessential “ old tube preamp ” sound.

The CA-70 preamp module uses Coil Audio's CT-110 or CT-110HN (by default) input and CT-41 output transformers, high quality capacitors, resistors, and NOS octal tubes. It's powered by Coil Audio PS6 Rack Tray and Power Supply.

PS6 Power Supply and Rack Tray sold separately

GC Audio Inherit Rack + RE 11 Cartridge a reissue of the preamplifier of the famous British mixing board, the SSL 4K E Series. Many improvements have been made to achieve better results.Low noise Operational amplifier

• Ultra low noise integrated preamp.
• Integrated balancing IC
• Great care on PCB Routing.

We recommend it for sound engineer looking for very clean recording with very low distortion and/or very high gain requirements.

GC Audio Inherit Rack is an innovative modular microphone and instrument preamplifier that allows, thanks to different Hot-swappable Solid State or Tube cartridges, to benefit from several types of preamplifiers, offering different tones and sound characters, in a single 2U 19" rack allowing to compare a wide range of sounds instantly.

Currently, 12 cartridges are available (more coming soon). They all offer a class A circuit:

• RE 15: Reissue of the Amek RN15 preamp, unbalanced and balanced by a very low noise Op-Amp
• RE 11: Modern, high-gain monolithic preamplifier
• RE 73: Reissue of the Neve 1073 preamp, unbalanced and balanced by an original Carnhill VTB9045 shielded transformer
• RE 98: Reissue of the Amek 9098 preamp, very low noise discrete components, balanced by Lundahl 1585 transformer
• RE VR: Improved reissue of the NEVE VR console preamp, de-balanced with a rebuilt Original TF10015 transformer, preamplified and balanced with a very low noise Op-Amp
• RE 4K: Reissue of the SSL 4K E Series preamp, unbalanced by an original Jensen 115 transformer, preamp balanced by very low noise Op-Amp
• Tube Heat: true high voltage tube preamp, unbalanced by transformer, no discrete components in the signal path
• Graham Langley: Designed in collaboration with Graham Langley to create a preamp offering the most focused and accomplished preamp with its own unique signature, using the unique capabilities of the Inherit system
• GY 4.5: Genuine tube preamplifier: Coming with two ECC82 running on high voltage
• Color Riser: module créatif complet offrant 3 étages de préamplification micro/ligne, traitement harmoniques et saturation à lampes
• Compressor Riser: ue chaine complète de processeur de signal offrant 2 étages de préamplification micro/ligne et le presseur VCA complet de l'Analog Riser
• Equalizer Riser: ue chaine complète de processeurs de signal offrant 2 étapes, Préamplification  micro/ligne et égaliseur paramétrique 3 bandes issu de l'Analog Riser

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

Looptrotter SaturAmp is one of a kind microphone / instrument preamplifier, equipped with an original saturation unit in rack 500 format. Due to this unique combination SaturAMP is a universal and creative tool, allowing the powerful sound, with great detail preservation, just while recording.

Chandler Limited TG2 - Two Channel Mic Preamp/DI
The Chandler Limited TG2 is a recreation of the rare EMI TG12428 pre amp used in EMI/Abbey Road recording and mastering consoles used in the late 60's and early 70's. The sound was used on many famous recordings done at Abbey Road including The Beatles "Abbey Road" and Pink Floyd "Dark Side of the Moon." The amplifiers were also used in many EMI circuits of the time. Our version was remade from original design notes and circuit board drawings, provided by Abbey Road and EMI to ensure extreme authenticity!

This Mic Pre features the same discrete transformer balanced amplifiers as the TG series limiter and offers a creamy, smooth tone with a surprisingly open, clear top end (dare we say nicer than Neve....) The sound, as explained by many users, has the Neve "warmth" and punch, but with a "nicer" expanded top end. In fact the unit does have a small rise in its top end frequency response and some warmth inducing distortion which contribute to its sound.

Purple Audio PANTS is a four op-amp, differential mic preamp. Designed to work in standard “500″ racks.

The Pants uses a unique dual-bobbin input transformer from Cinemag unlike any other. The smooth Gain control helps you dial in the sound you want. If the output level is too high, you can ride the level down with the separate Level control. Pressing the “High” switch changes the feedback network to provide an insane 78dB of clean gain, a great match for very low output mics.

With different Gain, High mode switch, and Level settings the Pants can produce many different tones with the same amount of output level. The front panel DI goes through a FET buffer into the input transformer, adding an extra dimension to the sound of the preamp.

Chandler Limited Little Devil Preamp
The Little Devil Pre Amp might be the best piece of Chandler gear yet! Several things make it so special.

The class A gain stage sounds like no other design we've done. It's big, yet open and full of life. Just about any parameter of the sound is changeable including the ability to change both the Feedback and Bias of the amplifier. The Feedback control increases harmonics thousands of times over the range of the control. The nature of clipping and distortion also changes and ranges from soft Class A clipping to super soft gushy tube type. The sounds range from a very colored and "overbiased" tone to a gently colored and "in your face" tone.

H2 Audio 2128 Helios Mic Preamp
The mic preamp circuit from the 0011 in a 500 series package. It features the same quality preamp with 70 db of gain, 20 db pad, phase control, 48V phantom power and selectable high pass filter. Also added is a Cinemag input transformer, output amp section with transformer out and output fader.

The GC Audio RE 15 cartridge is an overall ultra low noise preamplifier of a famous British mixer from the 90s, the Mozart RN15 designed by Rupert Neve / Graham Langley.

• Ultra low noise SSM2212 paired transistors.
• Low noise Operational amplifier.
• Great care on PCB Routing.

We recommend this cartridge to audio engineers looking for very quiet and clean Mic Pre.

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

GC Audio Langley Inherit Cartridge
GC Audio introduce a new preamp cartridge designed by Graham Langley, co-founder of Amek and designer of many large format mixing consoles (Amek Mozart, Rembrandt, Angela, etc...) in collaboration with Rupert Neve.

This new design, exclusive to the Inherit system, has been conceived to make the best use of the resources offered by the reception rack. The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

The GC Audio RE 98 cartridge is a reissue of famous British mixing console preamplifier from the 90s, the Amek 9098 designed by Rupert Neve / Graham Langley. Many improvements have been made to achieve better results:

• Ultra low noise SSM2212 paired transistors
• Ultra low noise Operational amplifier: OPA1612
• Great care taken to the PCB Routing
• Lundhal 1585 balancing

We recommend it for audio engineers looking for very quiet and clean recording with a subtle coloration on the top end.

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

GC Audio Inherit Rack Bundle 1 includes the Inherit Rack and the following 4 Cartridges to offer 4 preamps in 1:

• RE 73 : Reissue of the Neve 1073 preamp, unbalanced and balanced by an original Carnhill VTB9045 shielded transformer
• RE 98 : Reissue of the Amek / Neve 9098 preamp, very low noise discrete components, balanced by Lundahl 1585 transformer
• RE 4K : Reissue of the SSL 4K E Series preamp, unbalanced by an original Jensen 115 transformer, preamp balanced by very low noise Op-Amp
• Tube Heat: true high voltage tube preamp, unbalanced by transformer, no discrete components in the signal path

GC Audio Inherit Rack is an innovative modular microphone and instrument preamplifier that allows, thanks to different Solid State or Tube insert cartridges, to benefit from several types of preamplifiers, offering different tones and sound characters, in a single 2U 19" rack allowing to compare a wide range of sounds instantly.

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

Teknosign GAIN is a microphone preamplifier with digital controls of great design and superb sound. It has 2 channels and on each of them you can control the gain (up to 60 dB) and attenuation (0 – 63 dB), each level can be read on top of each knob on a 2 digits 7 segments display. In addition, 4 buttons per channel provide: 20dB attenuation, Phantom Power 48V, Phase Reverse and selection of either Microphone or Instrument. It has a custom transformer and a custom op-amp on each channel plus a general toroidal transformer for power supply. The design is specular giving you an immediate feeling with the machine and its 2 channels.

Traverse Analogue 652 stereo vacuum tube preamplifier with mic/line-level inputs

Using the GAIN control, the engineer can achieve 5 - 60 dB of gain from the uniquely-biased tube input stage, followed by a MASTER attenuation control in the output buffer stage. Want a clean yet musical replication of the source? How about the creamy saturation of an esoteric vintage preamplifier?

The 652's gentle drive characteristics allows for a broad tonal palette depending on how hard you hit it with signal. It is designed to interface with all types of microphones (including ribbons), and the line-level input pad allows you to add analogue warmth to any track from a digital audio workstation; making it an indispensable tool for adding colouration and harmonic distortion!

Two flavours, one box, all discrete, and proudly hand-crafted in Canada.

GC Audio Inherit Rack Bundle 2 includes the Inherit Rack and the following 4 Cartridges to offer 4 preamps in 1:

• RE 98 : Reissue of the Amek / Neve 9098 preamp, very low noise discrete components, balanced by Lundahl 1585 transformer
• RE VR : Improved reissue of the NEVE VR console preamp, de-balanced with a rebuilt Original TF10015 transformer, preamplified and balanced with a very low noise Op-Amp
• Tube Heat: true high voltage tube preamp, unbalanced by transformer, no discrete components in the signal path
• Graham Langley: Designed in collaboration with Graham Langley to create a preamp offering the most focused and accomplished preamp with its own unique signature, using the unique capabilities of the Inherit system

GC Audio Inherit Rack is an innovative modular microphone and instrument preamplifier that allows, thanks to different Solid State or Tube insert cartridges, to benefit from several types of preamplifiers, offering different tones and sound characters, in a single 2U 19" rack allowing to compare a wide range of sounds instantly.

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

CHANDLER LIMITED TG12411 Channel - TG Channel MKII Channel Strip
The Chandler Limited TG12411 channel, formerly known as the TG Channel MKII, is a recreation of several classic circuits - combining Wade Goeke's design of the TG2 pre amp section with an equalizer that was redesigned from a circuit used in the TG12410 Transfer Console, the mastering counterpart to the original "Beatles desks."

The active portions of the unit use the same discrete amplifiers and transformers as in the TG1 Limiter and TG2 pre amp. The TG12411's passive equalizer EQ is an all inductor design offering sweet high frequencies, large inductor based lows, and a very high "Q" mid cut section. Its sound is very comparable to Pultec and Lang program EQs. A simple description would be a TG Pultec with a TG pre amp thrown in.

All TG units require and function on the PSU-1, Chandler Limited power supply. The PSU-1 has an internal switch for setting voltage to 120V or 220V (115V/230V). For more information please call us at (319) 885-4200.

NOTE: As of late 2016, the TG Channel MKII was renamed the TG12411; there has been no modification to the MKII circuit.

Step Back – Here come the Burl Audio B1 and B1D.
Introducing the B1 and B1D Microphone Pre Amps from Burl Audio. Based on the API 500 series form factor, the B1 was designed to compliment the B2 Bomber ADC, and give you multi-channel pleasure. With the proprietary BX3 input transformer and BX2 output transformer, the B1 Mic Pre delivers warmth with depth and clarity.

The B1D is the same as the B1 except that it has an all iron BX4 output transformer giving it a more terrifying rock tone. An all discrete transistor, class-A, direct coupled, capacitor free circuit path, gives the B1 amazing punch on drums, beautiful tonality on guitars, and warmth with presence on vocals.

McAudiolab 8P -  Class-A solid-state 8 Channel Preamp and DI
The goal was to build a new mic preamplifier that exhibited the qualities of Class A range. Packing eight preamps into one chassis with one power supply. You won’t find any cut corners here, each channel uses Macaudiolab's super well-sounding 816 Class A discrete Op-Amp, as gain stage. The mic inputs benefits from the sound of the legendary Lundahl transformer which exhibits an incredible frequency response whilst adding a subtle amount of harmonic distortion. The excellent sound produced by this combination has been well proven in McAudiolab's 500 Series products. No matter what you feed it with. Another advantage of the transformer coupled input, is noise – or lack of it. Transients are preserved and the bottom-end sounds full, making the 8P the perfect choice for all music genres.

GC Audio Inherit Rack + RE 4K Cartridge a reissue of the preamplifier of the famous British mixing board, the SSL 4K E Series. Many improvements have been made to achieve better results.Low noise Operational amplifier

• Great care on PCB Routing
• Original Jensen 115 transformer balanced
• Output symmetry manually calibrated to achieve optimized values

Recommended for very punch recording and warmth on low end.

GC Audio Inherit Rack is an innovative modular microphone and instrument preamplifier that allows, thanks to different Hot-swappable Solid State or Tube cartridges, to benefit from several types of preamplifiers, offering different tones and sound characters, in a single 2U 19" rack allowing to compare a wide range of sounds instantly.

Currently, 12 cartridges are available (more coming soon). They all offer a class A circuit:

• RE 15: Reissue of the Amek RN15 preamp, unbalanced and balanced by a very low noise Op-Amp
• RE 11: Modern, high-gain monolithic preamplifier
• RE 73: Reissue of the Neve 1073 preamp, unbalanced and balanced by an original Carnhill VTB9045 shielded transformer
• RE 98: Reissue of the Amek 9098 preamp, very low noise discrete components, balanced by Lundahl 1585 transformer
• RE VR: Improved reissue of the NEVE VR console preamp, de-balanced with a rebuilt Original TF10015 transformer, preamplified and balanced with a very low noise Op-Amp
• RE 4K: Reissue of the SSL 4K E Series preamp, unbalanced by an original Jensen 115 transformer, preamp balanced by very low noise Op-Amp
• Tube Heat: true high voltage tube preamp, unbalanced by transformer, no discrete components in the signal path
• Graham Langley: Designed in collaboration with Graham Langley to create a preamp offering the most focused and accomplished preamp with its own unique signature, using the unique capabilities of the Inherit system
• GY 4.5: Genuine tube preamplifier: Coming with two ECC82 running on high voltage
• Color Riser: module créatif complet offrant 3 étages de préamplification micro/ligne, traitement harmoniques et saturation à lampes
• Compressor Riser: ue chaine complète de processeur de signal offrant 2 étages de préamplification micro/ligne et le presseur VCA complet de l'Analog Riser
• Equalizer Riser: ue chaine complète de processeurs de signal offrant 2 étapes, Préamplification  micro/ligne et égaliseur paramétrique 3 bandes issu de l'Analog Riser

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

The GC Audio RE 73 cartridge for Inherit Rack is a reissue of preamplifier came out of the legendary British preamplifier, the NEVE 1073.

Many improvements have been made to achieve best features

• Ultra Low noise transistor.
• Great care on PCB Routing.
• Carnhill VTB9045 High End shield version tranformer
• Digital gain control

We recommend it for sound engineer looking for very punch and coloration recording.

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

GC Audio RE 11 cartridge Limited Edition for the Inherit Rack is a modern and high gain monolithic preamplifier.

• Ultra low noise integrated preamp
• Integrated balancing IC
• Great care has been taken on PCB Routing

We recommend it for sound engineer looking for very clean recording with very low distortion and/or very high gain requirements.

The proprietary Inherit format keeps the sensitive part of the electronic design in a one-piece machined cartridge that acts as a Faraday cage to offer optimal electromagnetic shielding performance.

You can get the RE 11 free if you order a Bundle of Inherit Rack + any of the 8 other available Cartridges

McAudioLab TP2ch - Dual channel - class A - tube mic preamp
MCAudioLab TP2ch is the two channel version of the TP1 tube mic preamp, and it is designed to deliver incredible tone and outstanding performance for stereo or dual-mic’ed sources.

From pristine fidelity with just a touch of tube character to fat and punchy rock tones, the TP2ch provides a wide palette of tonal options suitable for a variety of sources and genres, be it stereo ensemble recordings, drum overheads or room mics, M/S configurations or any dual mic’ed acoustic source in both classical and pop/rock contexts. The channel controls are completely independent, so you’re free to use the preamp for tracking two separate sources at the same time.

McAudioLab MP1 - High-quality discrete mic preamp and DI
MP1 is an high-quality discrete mic preamp and DI for the 500 Series rack standard designed by MCAudioLab.

The MP1 gives you everything you need in a mic pre. You get 60dB of clean gain, plus essential features like phantom power, a -20dB pad and phase reversal.

The MP1 excels at adding the right “color” to the input signal and extra warmth character thanks to its H/L MIC switch. This gives you a larger palette of “coloration” to add to the sound of your favorite microphones.

What is the MicPre 5.0 ?
The Speck Electronics MicPre 5.0" is a complete single channel microphone preamp that offers features and flexibility for use in the most serious recording applications.

The signal path consists of a matched discrete transistor front-end, premium IC's, and transformer output stage. With the push of a button, the MP5.0 can change from an "Transformer-Balanced" output to a "Active-Balanced" output.

The compact 1/2 rack format of the MP5.0 can easily be rack mounted and combined with the Speck Model ASC equalizer to create a highly functional outboard channel strip.

The MicPre 5.0 also includes a mix section that makes it perfect for DAW's and remote recording.

Purple Audio BIZ MK
A unique sounding, three amplifier, discrete microphone preamp 500 Series module.

Coil Audio CA-286 Modular Microphone/Line Amplifier
The CA-286 preamp module is a tribute to the classic 1950’s and 60’s European two-stage amplifier made popular by Telefunken™, Langevin™, Collins™, and Gates™. The CA-286 excels in high fidelity recording applications providing the rich, detailed midrange often associated with vintage EF86 tube based preamps.

The CA-286 preamp module uses Coil Audio's CT-110 (optional) or CT-110HN (by default) and CT-41 output transformers, high quality capacitors, resistors, and NOS octal tubes and is powered by our PS6 Rack Tray and Power Supply, sold separately.

The Germ 500 MKII is an updated version of our original Germ 500. This unit has an improved faceplate layout and nicer look. It uses classic germanium transistors in all class A, transformer balanced circuits. We have also updated the power on the MKII so there no known power-up issues with current lunchboxes and rack systems.

Coil Audio CA-70S 2U Microphone/Line Tube Amplifier
The CA-70S single channel preamplifier is a 2U standalone version of our CA-70 preamp module. Power is housed on board, and a streamlined control layout. It boasts the exact same American style circuit, tubes, transformers, and high-end components as its PS6 sibling but with an elegant, user-friendly design. Simply put, the CA-70S is the easiest way to get those classic heavy Octal tube tones into your studio.