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ART USBDualTubePre - Tube Preamp with USB Interface

No Longer Available
Product Highlights
  • Dual Channel
  • Microphone/Lo-Z Combo Inputs
  • Per Channel Inserts
  • Switchable Optical Compressor
  • Low-Cut Filter
  • Phase Invert
  • Phantom Power
  • S/PDIF Output
  • Mac and Windows USB Compliant

The USBDualTubePre from ART is a compact, dual channel tube preamp suitable for use in any basic recording system. It functions standalone as a tube-based microphone preamp, or as the front end for a DAW via either USB, or using the S/PDIF output (the latter delivers a higher bit rate).

Each input of the unit has independent input gain control and output level, phase inversion, low frequency roll-off, 48V phantom power and an opto-compressor circuit that can be bypassed if required. Monitoring is available via a stereo mini headphone jack with level and monitor mix controls.

The mix controls allow latency free monitoring of the inputs while recording, as well as playback monitoring of audio mix via the USB bus. The monitor mix is also routed to the 1/4" balanced outputs, with separate level control for control room monitor source.

The interface is fully USB compliant with no special drivers needed. It functions under both Mac OS X and multiple versions of Windows operating systems.

2-channel Tube based Microphone/Instrument preamp computer interface
Low noise discrete front end with variable input and output controls
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 44.1 and 48kHz
Precision LED metering of both the preamp and A/D sections
Built-in low noise +48V phantom power supply
Compact, stackable all aluminum chassis
Interface USB 2.0 compliant (Windows 98SE, ME, 2000, XP, Vista, Windows 7, Apple OS9.1/OSX computers with native USB support)
Converters USB A/D-D/A: 16-bit, 44.1 or 48kHz, USB selectable from computer, 0.4mS A/D latency @ 44.1kHz
S/PDIF A/D: 24-bit, 44.1 or 48kHz switch selectable, 0.4mS A/D latency @ 44.1kHz
Number of Channels 2
Inputs 2 x 1/4" TS/XLR combo
2 x 1/4" TRS phone Inserts
Input Impedance Microphone: >4kΩ
Instrument: 1MΩ
Insert: 20kΩ
Maximum Input Level Microphone: +12dBu
Instrument: +16dBu (unbalanced)
Insert: +7.5dBu
Output 2 x 1/4" TRS phone (balanced)
1 x RCA coaxial S/PDIF
1 x 1/8" stereo mini Headphone
Output Impedance Line: 600Ω (balanced)
Insert: 300Ω
Headphone: 50Ω
Maximum Output Level Line: +11dBu (balanced)
Line: +5dBu (unbalanced)
Insert: +7.5dBu
Gain Range +65dB, balanced in-out
+45dB, unbalanced input, balanced output
Phantom Power +48V (single switch for both channels)
Multi Function Optical compressor
Compressor Slope: Progressively increasing slope, 10:1 maximum
Range: 28dB of attenuation maximum
Filter Low-Cut: -3.0dB @ 70Hz, 6dB/octave
Frequency Response 20Hz to 27kHz (+0.0, -1.0dB)
Noise EIN: -129dBu typical, A-weighted (shorted XLR balanced input, gain @ maximum)
THD <0.01% @ 1kHz
CMRR >60dB
Power Requirements 9VAC @ 1000mA via included external power supply
Dimensions (WxDxH) 5.9 x 6.5 x 1.75" (150 x 165 x 45mm)
Weight 2.5 lb (1.14kg) packaged with power adapter
Specialties Hand selected 12AX7A tube
All aluminum black anodized with integral rubber sides
ART USBDualTubePre - Tube Preamp with USB Interface
  • External Power Supply
  • Three (3) Year Warranty
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