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USB Dual Tube Pre

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Overview

Tube preamp with optical limiter, S/PDIF, and USB connectivity.

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.

Features

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

Super cost-effective tube front end for your DAW. Order today!

Specs

USB Dual Tube Pre Specifications:

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

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USB Dual Tube Pre

Tube preamp with optical limiter, S/PDIF, and USB connectivity.

Features

USB Dual Tube Pre Specifications:

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