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ART USBDualTubePre - Tube Preamp with USB Interface

B&H # ARUSBDTPA Mfr # USBDUALTUBEP
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
  • REVIEW SNAPSHOT®

    by PowerReviews
    ARTUSBDualTubePre - Tube Preamp with USB Interface
     
    4.3

    (based on 3 reviews)

    Ratings Distribution

    • 5 Stars

       

      (1)

    • 4 Stars

       

      (2)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    100%

    of respondents would recommend this to a friend.

    Pros

    • Easy to use (3)
    • Good audio (3)

    Cons

      Best Uses

      • Home studio (3)
        • Reviewer Profile:
        • Experienced (3)

      Reviewed by 3 customers

      Sort by

      Displaying reviews 1-3

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      (1 of 1 customers found this review helpful)

       
      4.0

      Decent piece of equipment

      By Schlock

      from Beautiful San Diego!!

      About Me Experienced

      Verified Buyer

      Pros

      • Clear Sound
      • Easy To Use

      Cons

      • Misleading Name
      • Only 16bit Usb

      Best Uses

      • Home Studio

      Comments about ART USBDualTubePre - Tube Preamp with USB Interface:

      I use the S/PDIF so I can utilize 24 bit. The USB is limited to 16 bit which is a shame since the first word of its name is USB. Also, it only has one tube. A bit misleading but still does it's job well.
      My application is for guitars and bass and my method is a mic on the left channel and I split my instrument signal so I can capture a line signal on the right. The tube helps add a bit of life to the otherwise drab line signal.
      One very important thing you should do. Change the tube to a Russian Tung-sol. It is cheap and worth the time for the extra clarity and open sound. The Chinese tube that comes stock is better than a plain Jane connection but the Tung really does out perform the stock tube. There is a youtube vid that shows how to disassemble a lesser version of this item. It's the one where the guy has his gun on the work bench (hard to miss). Totally applicable to this device.
      It's cheap, it's essential to have a tube pre, and it sounds nice, so do it. If you can afford better, go for it. I just hope the money comes from your music.

      I should have gave this three stars because the name is misleading and the stock tube is cheap. I gave it four because if you are looking a preamp, you are a real musician or sound engineer, and by being a real musician or sound engineer you will figure out a way to get the good tubes in this guy and achieve some nice results.

      Would be nice if ART would be a little more forthcoming about the details and make the USB 24 bit capable. I mean really, it's called USB Dual Tube Pre for (expletive) sake!

      Share this review

      (1 of 1 customers found this review helpful)

       
      5.0

      Great pre-amp/interface

      By cfriverdog

      from SF, CA

      About Me Experienced

      Verified Buyer

      Pros

      • Clear Sound
      • Compact
      • Durable
      • Easy To Use
      • Lightweight
      • Versatile

      Cons

        Best Uses

        • Amateur Recording
        • Home Studio
        • Professional Recording

        Comments about ART USBDualTubePre - Tube Preamp with USB Interface:

        Passed my test with flying colors. My saffire 6 stopped workiong when I upgraded my iMac to Mt.Lion. (Yeah, I know, should have waited...) and I had just bought a new ADK A6 mike I was impatient to try. With no clue when Focusrite would get it together, reading all the great stuff about the dualtube, and wanting a warmer sound for vocals (singing and voice acting). I decided to try it. B&H had the lowest price. Came right on time, easy set up and, best of all, NO DRIVERS! It uses the Apple usb codec. Great sound, useful low-cut filter. Anybody need a Focusrite Saffire 6?

        Share this review

         
        4.0

        USB Dual Tube Pre - with SPDIF outs

        By Rock Steady

        from San Francisco

        About Me Experienced

        Verified Buyer

        Pros

        • Clear Sound
        • Compact
        • Easy To Use
        • Lightweight

        Cons

          Best Uses

          • Amateur Recording
          • Events
          • Home Studio
          • Mobile DJ
          • Performances
          • Professional Recording

          Comments about ART USBDualTubePre - Tube Preamp with USB Interface:

          I bought this unit in order to add two channels of SPDIF input (the ART has SPDIF out only) to my mobile recording rig, a Presonus Firestudio Project. I've used art mini pres in the field in the past with success. They don't give you much gain but for loud sources like drums they are quite adequate. Although these pres are tube based they sound fairly neutral to my ears. Maybe that's because I'm not really pushing them?

          Anyhow, this product is the only product of it's kind at this price point. It functions just like it's supposed to and is very well built in my opinion. It feels solid and the potentiometers feel sturdy and are a pleasure to turn. You've got an input gain stage as well as an output level so I suppose to get the "tube" character you'd need to drive this unit. When the gain is at extremely high setting though you do get some noise from the pres. Like I said, for loud sources like drums amp cabinets etc. this is totally ok since I don't need much gain anyway.

          The only complaint I have about the unit is that a lot of the feature buttons like 48V and the Opto compressor etc. are cramped together and hard to distinguish and manipulate. That's no biggie though as this unit is fairly small in size coming in at 1/3 rack size. It is a lot deeper than most 1/3 rack size units though and I'm assuming that's to house the tubes. All in all, you can't go wrong with this unit. It works just like it's supposed to. Great buy in my opinion.

          Share this review

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