Deja Vu Audio HiFi Store
Deja Vu Audio 703.734.9391

New address: 8450B Tyco Road, Vienna, Va 22182
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Conrad Johnson GAT Preamplifiers

GAT Triode Preamplifier for sale

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Conrad Johnson: Winner of the 2015 Editor's Choice Awards by the Absolute Sound.

The GAT Preamplifier embodies conrad-johnson’s latest advances in line-stage preamplifier technology. We believe that it will quickly be recognized as the new industry-wide reference standard for line-stage preamplifier performance, a role filled for more than a decade by its legendary predecessor, the ART preamplifier. Like the ART, the GAT Preamplifier will be available in a numbered, limited edition of 250 units which will be sold through selected conrad-johnson dealers.

The GAT Preamplifier is a vacuum-tube, line-stage preamplifier that looks as good as it sounds. It is also notable for convenience and ease of use. The unit features input selection and level adjustment by microprocessor-controlled relays. Level and balance can be adjusted in 100 steps of approximately .7 dB per step. All functions can be controlled by the hand-held wireless remote control.

The circuitry of the GAT Preamplifier is elegant in its simplicity. The audio circuit consists of a single amplifier stage incorporating one composite triode comprised of paralleled sections of a high-transconductance miniature dual triode vacuum tube. This amplifier stage is coupled to the preamplifier outputs through a high-current MOSFET buffer, which achieves a very low output impedance, making the GAT extremely flexible in the choice of interconnect cables and amplifiers. DC voltage is supplied to the circuit by our latest discrete voltage regulator that isolates the audio circuit from the power line by maintaining negligible impedance across the audio frequency band. Infrasonic noise is minimized by operating the tube filaments (heaters) on a dc voltage supplied by another discrete regulated power supply.

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Considerable care and attention have been paid to the physical aspects of the design as well. Microprocessor controlled relays, used for selecting sources and level setting, are located right at the input connectors, keeping signal paths short to minimize crosstalk between channels and inputs. The vacuum-tubes are isolated by a suspension system designed to minimize microphonics. The dramatic casework features attractive clear Lucite tube guards outside the chassis, allowing for easy access for tube replacement.

At conrad-johnson we have long appreciated that the full potential of any circuit can only be realized by using the finest available parts. Each part for the GAT has been selected on the basis of both sonic performance and durability. The audio circuit (including the level control) is executed entirely with precision metal foil resistors and proprietary CJD Teflon capacitors. Tubes have been carefully hand selected for minimum noise and microphonics. The dc regulated power supplies use the same quality resistors as the audio circuits. Capacitors for the power supplies are exclusively polypropylene and Teflon – there are no electrolytic capacitors in the audio circuits or their related power supplies. All signal switching is done by special relays designed for signal applications. These relays are sealed and have gold plated silver contacts. Input and output connectors are machined from oxygen free copper, and are gold plated. The GAT is built without compromise to achieve a new standard in musical performance, and it is built to last.


Conrad Johnson Official website: GAT Preamplifier

Specifications
GAT Triode Preamplifier

Gain: 25 db
Maximum output: 20 vrms
Output impedance: under 100 ohms
Distortion: less than .15% THD
Frequency response: at unity gain: 2 Hz to more than 10OKhz
Hum and noise: 100 db below 1.0 v
Tube complement: 2 x 6922
Dimensions: 15.375D x 19W x 4.81H inches
Total weight: 35 lbs.
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Conrad Johnson GAT Preamplifier Photos

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More Conrad Johnson products:

GAT Triode Preamplifier | ET5 Preamp | ET3 Preamp | Classic 2 & Classic 2 SE Preamplifiers | TEA2 Phono Preamp |

CA150 Control Amplifier | ART and ARTsa Power Amp | LP125sa Amp | LP260M Amp | Classic Sixty Amp | MF2550 & MF2275 Amps | 
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Deja Vu Audio has moved to 8450B Tyco Road, Vienna, VA 22182.

Deja Vu Audio LTD.
8450B Tyco Road, Vienna, VA 22182
Phone: 703-734-9391 | Email: info@dejavuaudio.com | Store hours: Mon-Sat 11-7 pm; Sunday (by appointment)
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Amplifiers:
Audio Note amps
Conrad Johnson amps
Jolida amps
Parasound amps
Synthesis amps


PreAmplifiers:
Audio Note preamps
Conrad Johnson preamps
Jolida preamps
Onkyo preamps
Parasound preamps
Synthesis preamps
HiFi Speakers:
Audience speakers
Audio Note speakers
Harbeth speakers
ProAc speakers
Quad speakers
Synthesis speakers
Shahinian Acoustics speakers
Surreal speakers

Digital Sources:
Audio Note DAC
Jolida DAC
Synthesis Digital
Synthesis CD Player
Audio Note Tuners
Synthesis Tuners


High End Turntables:
Audio Note turntables
ClearAudio turntables
Thorens turntables
Garrard turntables
Verdier turntables

Phono Cartridges:
Audio Note cartridges
ClearAudio cartridges
Ortofon cartridges
Benz cartridges
Grado cartridges
Koetsu cartridges

Tonearms:
Audio Note tonearms
ClearAudio tonearms
Ortofon tonearms
Morch tonearms
Rega tonearms
Deja Vu Audio exclusive products:
Vintage Audio Equipment
Vintage Hi-Fi
Custom Tube Amps


Accessories:
Solidsteel Audio Tables
Audience cables
Audio cables
Cardas cables
XLO cables
Room Treatment
Western Electric Tubes
NOS Tubes
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Deja Vu Audio has moved to 8450B Tyco Road, Vienna, VA 22182

Audio Shows: Capital Audiofest; CES 2016; RMAF; National Audio Show; New York Audio Show; Vancouver Audio Show; Australian HiFi Show;...
Hi-Fi Audio Brands: Audio Note; Audience; Bel Canto; ClearAudio; Conrad Johnson; Jolida; Harbeth; Ortofon; ProAc; Shahinian Acoustics; Sonos; Synthesis; Thorens; ...
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