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The finest recording gear, designed & assembled by hand in the USA

D.W. Fearn equipment has become an essential part of the craft, artistry, and workflow of artists, engineers, producers and studios all over the world. As audio engineers and musicians ourselves, our mission is simple: to create intrinsically musical gear using the highest-quality specifications, components, and tubes to equal the dedication we have to our own artistic and technical visions.

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VT-1
VT-1

Mono tube microphone preamp

In designing the VT preamp, no compromise in sonic quality, reliability, or ruggedness was permitted. Like the best tube equipment of the 1950s and ’60s, the VT preamp is built on a heavy-gauge aluminum chassis, utilizing point-to-point wiring. Each vacuum tube is selected for minimum noise and microphonics, and maximum sonic clarity. The front panel switches control sealed, gold-contact precision relays for all audio switching, eliminating the possibility of dirty contacts degrading the sound and minimizing the internal audio path. Four class-A triode amplifier sections (in two tubes) in each channel comprise the entire active circuit. This surprisingly simple circuit, along with top-quality components and careful design optimization, results in the sonic superiority that the VT preamp has become known for.

Features

Specifications

∙ All vacuum-tube design ∙ Input 150ohms
∙ Lo-Z input position for superior performance with transformerless mics ∙ Input Load Impedance 1.5k ohms
∙ Phase (polarity) reverse switch ∙ Minimum Input Level -65 dBm nominal
∙ +48 volt phantom power (completely disconnected when off) ∙ Maximum Input Level @ 20 cps -30 dBm without pad, -5 dBm with 20 dB pad
∙ Custom-design Jensen input and output transformers ∙ Gain 53 dB
∙ 20 dB input pad (switchable) ∙ Frequency Response ±0.25 dB 20 cps to 20 kc; -3 dB @ 0.5 cps and 55 kc
∙ True VU meters (amplifier isolated) ∙ THD+Noise less than 0.25% 20 cps to 20 kc
∙ All point-to-point audio wiring ∙ Intermodulation Distortion SMPTE less than 0.02%
∙ Gold input and output XLR connectors ∙ Signal to Noise Ratio 74 dB minimum
∙ Polypropylene and polystyrene coupling capacitors ∙ Equivalent Input Noise -124 dBm maximum
∙ All audio switching through gold-contact, sealed precision relays ∙ Output low-Z, transformer-balanced
∙ International operation on 100, 120, or 220 VAC, 50/60 Hz ∙ Maximum Output Level +22 dBm, 20k ohm load
∙ CE certified, RoHS-compliant ∙ Power Requirements 100, 120, or 220 VAC, 50/60 Hz
∙ +4 dBm output ∙ Dimensions 19” 48.26cm W, 13.34cm H, 35.56cm D

(For full specifications see manufacturers product site under "links" tab)

 

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VT-2
VT-2

Dual channel tube microphone preamp

In designing the VT preamp, no compromise in sonic quality, reliability, or ruggedness was permitted. Like the best tube equipment of the 1950s and ’60s, the VT preamp is built on a heavy-gauge aluminum chassis, utilizing point-to-point wiring. Each vacuum tube is selected for minimum noise and microphonics, and maximum sonic clarity. The front panel switches control sealed, gold-contact precision relays for all audio switching, eliminating the possibility of dirty contacts degrading the sound and minimizing the internal audio path. Four class-A triode amplifier sections (in two tubes) in each channel comprise the entire active circuit. This surprisingly simple circuit, along with top-quality components and careful design optimization, results in the sonic superiority that the VT preamp has become known for.

Features

Specifications

∙ All vacuum-tube design ∙ Input 150ohms
∙ Lo-Z input position for superior performance with transformerless mics ∙ Input Load Impedance 1.5k ohms
∙ Phase (polarity) reverse switch ∙ Minimum Input Level -65 dBm nominal
∙ +48 volt phantom power (completely disconnected when off) ∙ Maximum Input Level @ 20 cps -30 dBm without pad, -5 dBm with 20 dB pad
∙ Custom-design Jensen input and output transformers ∙ Gain 53 dB
∙ 20 dB input pad (switchable) ∙ Frequency Response ±0.25 dB 20 cps to 20 kc; -3 dB @ 0.5 cps and 55 kc
∙ True VU meters (amplifier isolated) ∙ THD+Noise less than 0.25% 20 cps to 20 kc
∙ All point-to-point audio wiring ∙ Intermodulation Distortion SMPTE less than 0.02%
∙ Gold input and output XLR connectors ∙ Signal to Noise Ratio 74 dB minimum
∙ Polypropylene and polystyrene coupling capacitors ∙ Equivalent Input Noise -124 dBm maximum
∙ All audio switching through gold-contact, sealed precision relays ∙ Output low-Z, transformer-balanced
∙ International operation on 100, 120, or 220 VAC, 50/60 Hz ∙ Maximum Output Level +22 dBm, 20k ohm load
∙ CE certified, RoHS-compliant ∙ Power Requirements 100, 120, or 220 VAC, 50/60 Hz
∙ +4 dBm output ∙ Dimensions 19” 48.26cm W, 13.34cm H, 35.56cm D

(For full specifications see manufacturers product site under "links" tab)

 

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VT-24
VT-24

Four channel tube microphone preamp

In designing the VT preamp, no compromise in sonic quality, reliability, or ruggedness was permitted. Like the best tube equipment of the 1950s and ’60s, the VT preamp is built on a heavy-gauge aluminum chassis, utilizing point-to-point wiring. Each vacuum tube is selected for minimum noise and microphonics, and maximum sonic clarity. The front panel switches control sealed, gold-contact precision relays for all audio switching, eliminating the possibility of dirty contacts degrading the sound and minimizing the internal audio path. Four class-A triode amplifier sections (in two tubes) in each channel comprise the entire active circuit. This surprisingly simple circuit, along with top-quality components and careful design optimization, results in the sonic superiority that the VT preamp has become known for.

Features

Specifications

∙ All vacuum-tube design ∙ Input 150ohms
∙ Lo-Z input position for superior performance with transformerless mics ∙ Input Load Impedance 1.5k ohms
∙ Phase (polarity) reverse switch ∙ Minimum Input Level -65 dBm nominal
∙ +48 volt phantom power (completely disconnected when off) ∙ Maximum Input Level @ 20 cps -30 dBm without pad, -5 dBm with 20 dB pad
∙ Custom-design Jensen input and output transformers ∙ Gain 53 dB
∙ 20 dB input pad (switchable) ∙ Frequency Response ±0.25 dB 20 cps to 20 kc; -3 dB @ 0.5 cps and 55 kc
∙ True VU meters (amplifier isolated) ∙ THD+Noise less than 0.25% 20 cps to 20 kc
∙ All point-to-point audio wiring ∙ Intermodulation Distortion SMPTE less than 0.02%
∙ Gold input and output XLR connectors ∙ Signal to Noise Ratio 74 dB minimum
∙ Polypropylene and polystyrene coupling capacitors ∙ Equivalent Input Noise -124 dBm maximum
∙ All audio switching through gold-contact, sealed precision relays ∙ Output low-Z, transformer-balanced
∙ International operation on 100, 120, or 220 VAC, 50/60 Hz ∙ Maximum Output Level +22 dBm, 20k ohm load
∙ CE certified, RoHS-compliant ∙ Power Requirements 100, 120, or 220 VAC, 50/60 Hz
∙ +4 dBm output ∙ Dimensions 19” 48.26cm W, 13.34cm H, 35.56cm D

(For full specifications see manufacturers product site under "links" tab)

 

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VT-4
VT-4

Mono Passive Tube Equalizer

This equalizer uses passive LC circuitry with class-A triode vacuum tube stages for the input and output. The tube circuitry is largely derived from the VT-1/VT-2 mic preamp design, so the equalizer has much the same sonic character as the preamps.

The LC-style passive equalization circuitry is based on the classic designs that are still the best-sounding way to achieve high-quality tonal control.

The input is line-level, transformer balanced-bridging. An active vacuum tube input section has adjustable gain to accommodate input signals as low as -10 dBm. The input transformer is made by Jensen. The output stage utilizes the same custom Jensen transformer used on the VT-1/VT-2 mic preamps.

All controls are stepped for precise repeatability and uniform matching between units. High-quality rotary switches are used with 1% metal-film resistors. All of the audio capacitors are polystyrene or polypropylene. The inductors are custom-made for us by Jensen Transformers Inc.

The equalizer is constructed of heavy-gauge aluminum, with a 3RU (5.25 inch), 1/4-inch thick front panel, finished in D.W. Fearn red. It matches the VT-1/VT-2 series of mic preamps in appearance and construction.

Like the VT-1/VT-2 preamps, the Equalizer has been designed to provide an exceptional tool for audio professionals. The design frequencies and curves were determined by ear, after extensive listening to a variety of program material, both individual tracks and overall mixes. The result is a highly-musical equalizer with plenty of range for enhancing any track or mix.

Specifications

(EQ out): Low Cut @ 30, 40, 100, or 400 Hz, 0 to -18 dB shelving in 2 dB steps
Frequency response: ± 0.2 dB 20 Hz to 20 kHz Low Boost @ 20, 40, 60, or 140 Hz, 0 to 16 dB shelving in 2 dB steps
THD: less than 0.06% Mid Cut @ 200, 300, 400, 500, 600, or 700 Hz, 0 to -16 dB in 2 dB steps
Signal-to-Noise: better than 80 dB High Boost @ 1.5, 3, 4, 5, 8, 10, 12, or 16 kHz, 0 to 12 dB in 2 dB steps
  High Bandwidth Q of 0.6, 0.8, 1.0, 1.4, or 1.7
  High Frequency Cut @ 1.5, 3.5, 8, or 28 kHz, 0 to -14 dB shelving in 2 dB steps
  Gain adjustable from -9 to +9 dB, referenced to +4 dBm, in 3 dB steps
NOTE: Frequency is specified in cycles per second (cps) or kilocycles per second (kc). These units correspond to Hz and kHz respectively. Measurements made with -50 dBm input and 50 dB gain in a 22 cps to 22 kc bandwidth. Specifications and price subject to change without notice.  

(For full specifications see manufacturers product site under "links" tab)

 

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VT-5
VT-5

Stereo Passive Tube Equalizer

New VT-5 units have been optimized to eliminate the need for an internal fan. While the fans in D.W. Fearn equipment has always been extraordinarily quiet, research has shown that no fan is even quieter.

This equalizer uses passive LC circuitry with class-A triode vacuum tube stages for the input and output. The tube circuitry is largely derived from the VT-1/VT-2 mic preamp design, so the equalizer has much the same sonic character as the preamps.

The LC-style passive equalization circuitry is based on the classic designs that are still the best-sounding way to achieve high-quality tonal control.

The input is line-level, transformer balanced-bridging. An active vacuum tube input section has adjustable gain to accommodate input signals as low as -10 dBm. The input transformer is made by Jensen. The output stage utilizes the same custom Jensen transformer used on the VT-1/VT-2 mic preamps.

All controls are stepped for precise repeatability and uniform matching between units. High-quality rotary switches are used with 1% metal-film resistors. All of the audio capacitors are polystyrene or polypropylene. The inductors are custom-made for us by Jensen Transformers Inc.

The equalizer is constructed of heavy-gauge aluminum, with a 3RU (5.25 inch), 1/4-inch thick front panel, finished in D.W. Fearn red. It matches the VT-1/VT-2 series of mic preamps in appearance and construction.

Like the VT-1/VT-2 preamps, the Equalizer has been designed to provide an exceptional tool for audio professionals. The design frequencies and curves were determined by ear, after extensive listening to a variety of program material, both individual tracks and overall mixes. The result is a highly-musical equalizer with plenty of range for enhancing any track or mix.

Specifications

(EQ out): Low Cut @ 30, 40, 100, or 400 Hz, 0 to -18 dB shelving in 2 dB steps
Frequency response: ± 0.2 dB 20 Hz to 20 kHz Low Boost @ 20, 40, 60, or 140 Hz, 0 to 16 dB shelving in 2 dB steps
THD: less than 0.06% Mid Cut @ 200, 300, 400, 500, 600, or 700 Hz, 0 to -16 dB in 2 dB steps
Signal-to-Noise: better than 80 dB High Boost @ 1.5, 3, 4, 5, 8, 10, 12, or 16 kHz, 0 to 12 dB in 2 dB steps
  High Bandwidth Q of 0.6, 0.8, 1.0, 1.4, or 1.7
  High Frequency Cut @ 1.5, 3.5, 8, or 28 kHz, 0 to -14 dB shelving in 2 dB steps
  Gain adjustable from -9 to +9 dB, referenced to +4 dBm, in 3 dB steps
NOTE: Frequency is specified in cycles per second (cps) or kilocycles per second (kc). These units correspond to Hz and kHz respectively. Measurements made with -50 dBm input and 50 dB gain in a 22 cps to 22 kc bandwidth. Specifications and price subject to change without notice.  

(For full specifications see manufacturers product site under "links" tab)

 

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VT-7
VT-7

Dual channel tube driven PWM compressor

The VT-7 has a highly transparent sound, although it can be used more aggressively when needed. Artifacts of the compression process are substantially lower than in most other compressors.

The two channels may be used independently or linked for stereo. In addition, a third position on the Link switch inserts a high-pass filter (HPF) in the side-chain to reduce the gain-reduction sensitivity of the VT-7 to low frequencies. This is a gentle roll-off, nominally at 100Hz. This allows a bass-heavy mix to have a better frequency balance and prevents heavy low-frequency audio from modulating the audio level. (NOTE: The photo of the VT-7 shows an older unit without the Link HPF position.)

Like all our products, the VT-7 is designed to process high-quality audio and make it sound even better.

The VT-7 is equally adept in tracking as well as a bus compressor. Even jazz and classical tracks can be sent through the VT-7 for some mild gain control without obvious effect other than a significant improvement in the overall sound of the mix.

Controls

Specifications

∙ Threshold ∙ Frequency Response: 20Hz – 20kHz ±0.5dB
∙ Gain ∙ -3dB @ 5Hz and 65kHz
∙ Attack ∙ THD: less than 0.07%
∙ Release ∙ Signal to Noise Radio: better than 80dB
∙ Harder / Softer  
∙ Seperate / Link / Link HPF  

(For full specifications see manufacturers product site under "links" tab)

 

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VLC
VLC
HAZELRIGG VLC

All tube recording channel w/EQ

The foundation of the VLC is the legendary Preamp and Power Supply design utilized in the VT series of Tube Microphone Preamplifiers from D.W. Fearn. Designed for sonic transparency and delivering incredible headroom, the VLC will produce stunning results with dynamic, condenser and ribbon microphones and will change the way you approach your mic locker during a session. Add the Pultec-style passive Inductor/Capacitor equalizer circuit and you get this powerful package. Both suitable for tracking and for post processing. In pairs used widely for mixbuss sweetening duties!

 

The VLC, like all D.W. Fearn and Hazelrigg Industries products, is hand-built in the USA in the same shop along side other D.W. Fearn products. It is smaller and lighter than other Fearn products, to make it easy for artists, producers and engineers to take it to sessions and live shows. It can be used to capture vocals and instruments and inserted on vocal channels or in pairs on the master bus for mix down.

 

Controls

Specifications

∙ Input select - Mic/Line/Inst (1 megaohm)   ∙ Frequency Response: 20Hz–20kHz ±0.5dB
∙ Input gain ∙ THD: less than 0.35% @ 20Hz-20kHz
∙ +48V, PAD, Ø, EQ in/out ∙ Signal to Noise Ratio: typical 72dB
∙ Low cut continuously variable (0-12dB) shelf @ 60Hz or 200Hz  
∙ Low boost continuously variable shelf (0-12dB) @ 80Hz or 140Hz  

∙ High boost continuously variable shelf (0-12dB) @ 5kHz or 10kHz

 

∙ High cut continuously variable bell (0-12dB) @ 2kHz or 10kHz

 

∙ Power on/off

 

(For full specifications see manufacturers product site under "links" tab)

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VDI
VDI
HAZELRIGG VDI

Single channel tube DI

The Hazelrigg VDI is a reimagining of the legendary D.W. Fearn VT-1/F, the VDI is an all-triode Vacuum Tube Direct Box in a single channel configuration. Unlike the original VT-I/F dual channel design, the VDI is a single channel offering housed in a robust, low profile steel chassis, ready to slip into a backpack or gig bag. Signal to Love Ratio 1:1

 

Designed for both stage and studio work, the VDI is offered as part of the Hazelrigg Industries Solutions Series by D.W. Fearn and will deliver incredible results with amplified acoustic instruments, electric bass and guitar, synths or more. 1 megaohm jack input, 6072 tube driven input and output stages feeding the transformer balanced output. No nonsense.

 

Controls                        

Specifications

∙ Ground lift                    ∙ Frequency Response: ±0.2dB 10Hz-20kHz
∙ Power on/off ∙ -3dB @ 0.5Hz and 95kHz
  ∙ THD: less than 0.3% @ 20Hz-20kHz
   
   
   

(For full specifications see manufacturers product site under "links" tab)

 

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