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Art USB Dual Tube Pre

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The ART USBDualTubePre is a compact, dual-channel tube preamp designed for any basic recording system. Capable of operating as a standalone unit with USB audio interface, or as an expander for any dig... Click To Read More About This Product

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The ART USBDualTubePre is a compact, dual-channel tube preamp designed for any basic recording system. Capable of operating as a standalone unit with USB audio interface, or as an expander for any digital system with S/PDIF digital input, each channel in the USBDualTubePre delivers superior tube tone in a fully featured input strip.

Each input of the USBDualTubePre has independent input gain control and output level, phase inversion, low frequency roll-off, true 48V phantom power, and a user-defeatable optocompressor circuit”capable of ensuring superior dynamic control of any input source.

For monitoring, an 1/8" mini headphone jack with level and monitor mix controls allow latency-free monitoring of the inputs while recording, as well as playback monitoring of audio mix via USB bus. The monitor mix is also routed to 1/4" TRS (balanced) outputs with separate level control for control room monitor source.

The USB interface is fully USB compliant. No special drivers are needed.


  • Two-channel tube-based Mic/Instrument preamp computer interface
  • Extremely low noise discrete front end with variable input and output controls
  • Advanced optical output compressor to simplify recording and prevent overload
  • USB connectivity to desktop and laptop computers
  • S/PDIF output for expanding inputs on digital workstations and computer interfaces
  • Latency free Monitoring Mix and Level controls
  • Balanced XLR for lo-Z applications and 1/4" hi-Z inputs for instrument DI applications
  • Separate Gain, Phase Invert, Low Cut Filter and Compressor switches on each input
  • Selectable Dual or Stereo operation of output controls
  • Switch selectable Inserts on each channel
  • Insert jacks provide a preamp direct out for each channel
  • Stereo/ Dual operation of Optical Compressor
  • Mono switch for single input monitoring
  • S/PDIF Sample Rate switch selectable between 44.1K and 48K
  • Precision LED metering of both the preamp and A/D sections
  • Built-in low noise +48 Volt phantom power supply
  • Compact, stackable all aluminum chassis
  • Input connections: XLR/1/4" Combo jack - XLR balanced or 1/4" unbalanced
  • Input impedance: 1M ohm 1/4" input; >4k ohm XLR input; 20k ohm insert input
  • Output connection: 1/4" TRS (balanced); 1/8" TRS headphone mini-jack
  • Output impedance: 600 ohm (balanced 1/4"); 300 ohm (inserts); < 50 ohm (headphone 1/8")
    Frequency response: 20Hz “ 27kHz (+0, -1dB)
  • Maximum gain: +65dB (balanced in-out), +45dB (unbalanced input, balanced output)
  • THD: <0.01% @ 1kHz
    CMRR: >60dB
  • Equivalent input noise: -129dBu typical (œA weighted, shorted XLR balanced input, gain @ maximum)
  • Maximum input level: unbalanced (Inst.): +16 dBu, balanced (mic): +12dBu, Insert input: +7.5dBu
  • Max output level: +5dBu unbalanced; +11dBu balanced; +7.5dBu (insert output)
  • Phantom Power: Switch-selectable, +48Volts DC, filtered, current-limited
  • Tube Type: Hand-selected 12AX7A
  • Compressor slope: Progressively increasing slope, 10:1 max.
  • Compressor range: 28dB attenuation max.
  • Low-cut filter: -3dB @ 70Hz, 6dB/Octave
  • USB A/D-D/A: 16-bit/44.1kHz or 48kHz, USB selectable from computer, 0.4 ms A/D latency @ 44.1K Hz
  • S/PDIF A/D: 24-bit/44.1kHz or 48kHz, switch-selectable; 0.4ms A/D latency @ 44.1kHz
  • Computer interface: USB 2.0 compliant, Windows 98SE/ME/2000/XP/Vista, Win 7, Apple OS9.1/OSX computers with native USB support
  • Chassis type: All-aluminum black anodized with integral rubber sides
  • Power requirements: 9VAC @ 1000mA (external)
  • Dimensions: 1-3/4"H x 5-15/16"W x 6-1/2"D (44.5mm x 150mm x 165mm)
  • Weight: 2.5 lb. (1.14 kg) with power supply and packaging
  • *Note: 0dBu = 0.775Vrms
Pro Coverage
In general - one year warranty for equalizers, power conditioners, and personal processors.
3 year warranty for TPS, DPS, and studios.
5 year warranty for pro gear.
Check with manufacturer for specific product warranty.

  • Customer Reviews

Review Snapshot

by PowerReviews
ArtUSB Dual Tube Pre

(based on 4 reviews)

Ratings Distribution

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Reviewed by 4 customers

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(2 of 2 customers found this review helpful)


Best Upgrade Yet!!

By Trey Young

from Greenville,SC

Comments about Art USB Dual Tube Pre:

My sterling audio preamp started giving me a humming noise after 6yrs so i went and got one of these bad boy's. And let me tell ya, this with the mogami wires are "AWSOME". Before it sounded like you were far away or it wasn't as warm as i thought it use to be. But now it's just amazingly crystal clear with good, clean, extrodinary vocals. I was skeptical at first but the guy at GC told me the usb will sound better and have better quality then having a bunch of adapters to get it to fit my computer. This is by far the best upgrade i had done to my studio so far!

(1 of 1 customers found this review helpful)


awesome pre amop

By antonio wilson

from lehigh acres, florida

Comments about Art USB Dual Tube Pre:

one of the workers at guitar center told me my vocals would sound great on this and he was not lying i jus got this today and its more than an awesome christmas gift

(1 of 1 customers found this review helpful)


Too many features!

By Kyle Evans

from Delaware, OH

Comments about Art USB Dual Tube Pre:

This thing has a feature in every nook and cranny. I got confused when hooking this thing up because I thought, hey four 1/4" jack ports, two of them must be inputs. Then when I looked closer they say insert, and according to the schematic on the bottom(totally awesome), they come after all of the amplification!?! Turns out, the XLR ports are also 1/4" ports. >mind blownmind blown< The versatility and quality of this thing are astounding.

(1 of 1 customers found this review helpful)


An affordable 2 channel preamp/DI with digital output - very rare.

By Raymond Boyce

from Boston MA

Comments about Art USB Dual Tube Pre:

I had been searching high and low for a moderately priced 2 channel preamp with digital output. I wanted to expand the I/O capability of my interface, which has a SPDIF input, and I was having a very difficult time finding a device that would satisfy what I thought was a very simple requirement. Until I discovered this device, the only moderately priced choices were the ART DPS II and the DBX 386 (both of which retail for more than 250 dollars. This device does EXACTLY what I need, and Musicians Friend and Guitar Center are blowing them out for only 99 bucks. That's a steal. Plus, it can be used as a 2 channel USB interface (although I won't be using it for that purpose). So far, so good - it immediately started sending 24 bit audio into my interface using the SPDIF output. Preamps sound clean enough, especially for the price. It even has an built-in optical compressor. The only downside i that it only supports sampling rates of 44.1 and 48khz, but for my purposes that's fine.

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