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Roland UA-55
QUAD-CAPTURE USB Audio Interface

OUR PART #:  UA-55

With a pair of premium VS Preamps onboard, plus superb 24-bit/192 kHz audio quality, ultra-low latency performance...
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List Price: $349.00
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Roland UA-55
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With a pair of premium VS Preamps onboard, plus superb 24-bit/192 kHz audio quality, ultra-low latency performance, and convenient USB bus power, QUAD-CAPTURE sets a new standard for portable USB 2.0 audio interfaces. Its compact, durable design and pristine sound makes it the perfect foundation for portable, multichannel computer-based productions on the go. With quality and performance that far exceeds its size and price, QUAD-CAPTURE stands at the head of its class.


  • 2 combo XLR/TRS inputs with premium mic preamps (VS Preamps), two TRS outputs, coaxial I/O, headphone out, and MIDI I/O
  • Graphical Control Panel software provides fast, intuitive control of theVS Preamps
  • Phantom power, ground lift, and Hi-Z switches
  • One-click AUTO-SENS function intelligently sets optimal input levels forthe preamps
  • Extreme low-latency VS Streaming driver
  • Low-noise, wide-range power supply
  • Compact with durable aluminum body and Direct Box functionality
  • Bundled with Cakewalk SONAR X1 LE

QUAD-CAPTURE boasts 2 premium-grade, digitally controlled mic preamps (VS Preamps) made from the same high-grade components as the preamps found in Roland’s V-Studio 700 and M-400 digital mixer.  2 XLR/TRS combo inputs are provided for the preamps, plus independent phantom power, low-cut filter, phase invert, and digital compression for each channel.  The VS preamps can be controlled easily and intuitively with the included graphical Control Panel software (Mac/PC).

To set the input levels, simply activate the AUTO-SENS feature with the push of a button, play your connected instruments, and QUAD-CAPTURE automatically sets the ideal recording level for each input.  Whether you're a beginner or a professional, AUTO-SENS is great for quick, fail-safe recordings, saving you setup time and letting you focus on the performance.

QUAD-CAPTURE offers incredible stability and industry-leading low-latency USB performance via Roland's proprietary VS Streaming technology.  All current Mac and PC DAW platforms are supported through ASIO 2.0/WDM (Windows) and Core Audio (Mac).

One of QUAD-CAPTURE's key "behind-the-scenes" features is its low-noise, wide-ranging power supply.  Designed to deliver a clean, balanced input and output, it provides a reliable foundation for any professional audio application or environment.  When driven by the USB bus power supply, QUAD-CAPTURE's power is regenerated, providing the analog circuitry ideal voltage for the very best sound quality and efficiency in mobile environments.

QUAD-CAPTURE is small, strong, and housed in a road-tough aluminum body, so you can transport it anywhere with the confidence that its premium internal components are securely protected.  For live-concert environments, QUAD-CAPTURE also provides Direct-Box (DI) functionality, essential for noise-free live stage use.

Every QUAD-CAPTURE package includes a complimentary copy of SONAR X1 LE software for PC that's designed to work fluidly and seamlessly with the interface.  Derived from Cakewalk's award-winning SONAR X1 DAW software, the LE version give you a powerful set of software tools for writing, recording, editing, and mixing your music.

Number of Audio Record/Playback Channels:

  • Sampling Frequency = 96 kHz, 48 kHz, 44.1 kHz:
    - Recording: 4channels
    - Playback: 4 channels
  • Sampling Frequency = 192 kHz:
    - Recording: 2 channels
    - Playback: 2channels

Signal Processing:

  • PC interface: 24 bits
  • AD/DA Conversion: 24 bits
  • Internal: 40 bits

Sampling Frequency:

  • AD/DA Conversion: 192 kHz, 96 kHz, 48 kHz, 44.1 kHz
  • DIGITAL IN/OUT: 96 kHz, 48 kHz, 44.1 kHz

Nominal Input Level:

  • Input jacks 1, 2 (XLR type): -60 to -6 dBu
  • Input jacks 1, 2 (1/4-inch TRS phone type): -50 to +4 dBu

Nominal Output Level:

  • OUTPUT 1, 2: +0 dBu (balanced)

Headroom: 14 dB

Input Impedance:

  • Input jacks 1, 2 (XLR type): 4.8 k ohms (balanced)
  • Input jacks 1, 2 (1/4" TRS phone type): 15 k ohms (balanced)

Output Impedance:

  • OUTPUT 1, 2: 2 k ohms (balanced)
  • PHONES: 47 ohms

Frequency Response:

  • 192.0 kHz: 20 Hz to 90 kHz (+0/-8 dB), 20 Hz to 60 kHz (+0/-2 dB)
  • 96.0 kHz: 20 Hz to 40 kHz (+0/-2 dB)
  • 48.0 kHz: 20 Hz to 22 kHz (+0/-2 dB)
  • 44.1 kHz: 20 Hz to 20 kHz (+0/-2 dB)

Residual Noise Level:

  • INPUT 1, 2 to OUTPUT 1, 2: -95 dBu typ. (GAIN: min., 600 ohms terminated,IHF-A)
    - Internal Direct Monitor Mixer setting
    - Input channel fader:Unity

Dynamic Range:

  • AD block: INPUT 1, 2: 104 dB typ. (GAIN: min.)
  • DA block: OUTPUT 1, 2: 109 dB typ.

Additional Specifications:

  • Connectors:
    - Input jacks 1, 2 (XLR type / 1/4-inch TRS phonetype)
    - XLR type ... balanced (phantom power: DC 48V, 6mA Max perchannel)
    - 1/4" TRS phone type ... balanced (INPUT 1 supports highimpedance)
    - COAXIAL IN connector
    - COAXIAL OUT connector
    - Headphonejack (Stereo 1/4" phone type)
    - OUTPUT jacks 1, 2 (1/4" TRS phone type(balanced))
    - MIDI connectors (In, Out)
    - USB connector
  • Interface:
    - Hi-Speed USB
    - Digital input/output: Coaxial type(Conforms to IEC60958 consumer format)
    - MIDI input/output
  • Power Supply: USB Bus Power
  • Current Draw: 480 mA
  • Accessories: Owner's Manual, Cakewalk SONAR LE DVD-ROM (for Windows),Driver CD-ROM, USB cable
  • Dimensions: 7-5/16" W x 5-5/16" D x 1-3/4" H (185 x 134 x 44 mm)
  • Weight: 1 lbs, 5 oz. (570 g)
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