USB Audio Interface


The UA-101 is a half-rack, high-speed USB audio interface designed to turn your USB 2.0-ready computer into a powerful digital audio workstation. No other computer connection is required to get a full 10 inputs and 10 outputs at 24-bit/96kHz to the computer. The UA-101 is built to offer low latency and extraordinary stability. It’s the easiest-to-use yet most-powerful compact audio interface available.

Dedicated Monitor Output

The UA-101 offers dedicated monitor outputs, kept separate from its channel outputs 1-8.

All Balanced I/O

The UA-101 features all-balanced inputs and outputs with input level selection switches on inputs 3-8, offering either +4dBu or -10dBu levels.

Included Signal Router/Mixer Application

The UA-101 comes with a powerful software application that allows you to route your inputs to various outputs and adjust your input monitor mix. This application allows the UA-101 to be reconfigured in a variety of ways without requiring any cable swapping or changes in your DAW application.

Built-In Limiter

The UA-101 allows you more freedom in setting your recording levels with the built-in limiter. Prevent clipping in your recordings. Get high-quality studio recordings with a wide dynamic range. No more worry about clipping a live recording or losing valuable signal because of brief loud transients.

Superb Audio Fidelity with 40-bit Internal Processing

The UA-101 uses premium analog components perfectly matched to its A/D converters for incredible fidelity. All audio is processed internally at 40-bit resolution to ensure accurate recording.


The UA-101 offers both MIDI input and output to connect external MIDI devices to your DAW.

Optical S/PDIF Input and Output

Channels 9 and 10 are dedicated S/PDIF digital channels, offering convenient connection to DAT, Minidisc, or other digital sources and destinations at up to 96kHz.

Low-Latency Driver Support

The UA-101 offers incredibly low latency through both WDM and ASIO 2.0 support for superior performance in your home studio.

High-Speed USB (USB 2.0) and Full-Speed (USB 1.1) compatible

The UA-101 is the first multi-channel high-speed USB audio interface to offer basic compatibility with USB 1.1. When connected through USB 1.1, the UA-101 will function as a stereo audio interface at 44.1 or 48kHz with any Win98 or later PC or Mac OS 9 or Mac OS X computer. When connected to Windows XP computer running USB 2.0, the UA-101 offers the full set of I/O options to your computer.

Number of Audio Record/Playback Channels
44.1/48/88.2/96 kHz
Record: 10 channels
Playback: 10 channels
Full duplex
192 kHz
Record: 6 channels
Playback: 6 channels
Full duplex
Signal Processing
PC interface
24 bits
AD/DA Conversion
24 bits (linear)
Sampling Frequency
Digital output
44.1/48/88.2/96 kHz
Digital input
44.1/48/88.2/96 kHz
AD/DA Conversion
44.1/48/88.2/96/192 kHz
Frequency Response
96.0 kHz
20 Hz to 40 kHz (+1/-1 dB)
88.2 kHz
20 Hz to 40 kHz (+1/-1 dB)
48.0 kHz
20 Hz to 22 kHz (+1/-1 dB)
44.1 kHz
20 Hz to 20 kHz (+1/-1 dB)
Nominal Input Level
Input Jack 1--2 (XLR type)
-50 to -10 dBu
Input Jack 1--2 (1/4 inch TRS phone type)
-35 to +4 dBu
Input Jack 3--8
-10 dBu/+4 dBu (balanced)
Nominal Output Level
Output Jack 1--8
+4 dBu (balanced)
Residual Noise Level (Typical)
Output Jack 1--8
-97 dBu
S/N RATIO (Typical)
107 dB
101 dB
USB (Hi-Speed, Full-Speed)
Digital input/output: Optical type (conforms to IEC60958, S/PDIF)
Front Panel
Input Jacks 1-2 (XLR type / 1/4 inch TRS phone type)
XLR type (balanced / phantom power +48 V)
1/4 inch TRS phone type (balanced)
Digital In Connector (Optical type)
Digital Out Connector (Optical type)
Headphones Jack (Stereo 1/4 inch phone type)
Rear Panel
Input Jack 3-8 (1/4 inch TRS phone type (balanced))
Output Jack 1-8 (1/4 inch TRS phone type (balanced))
Monitor Output Jack (L, R) (1/4 inch TRS phone type (balanced))
MIDI Connectors (In, Out)
USB Connector
Power Supply
DC 9 V (AC adaptor)
Current Draw
1 A
Owner's Manual
System Requirements
In case of USB 2.0 (Hi-SPEED USB) [Windows]
Microsoft® Windows® XP Home SP1/XP Professional SP1
Windows XP compatible computer equipped with a USB 2.0 (Hi-SPEED USB) port
Pentium® III, Pentium® 4, Pentium® M Processor 1.2 GHz or higher.
256 MB or more
System Requirements
In case of USB 1.1 (Full-SPEED USB) [Windows]
Microsoft® Windows® XP Home/XP Professional/Me/2000/98SE
Windows XP/Me/2000/Me compatible computer equipped with a USB 1.1 (Full-SPEED) port
Pentium®, Celeron® or Intel compatible processors / 600 MHz or higher
128 MB or more
System Requirements
In case of USB 1.1 (Full-SPEED USB) [Macintosh]
Mac OS X 10.2.3 or later
Mac OS 9.x
Apple Macintosh series with on-board USB port
PowerPC G3/600 MHz or higher (PowerPC G4 is recommended)
256 MB or more* 512 GB or more is recommended in Mac OS X
OMS 2.3.5 or later
FreeMIDI 1.35 or later (Mac OS 9.x)
Size and Weight
218 mm
8-5/8 inches
159 mm
6-5/16 inches
45 mm
1-13/16 inches
1.2 kg
2 lbs. 9 oz.
(0 dBu = 0.775 V rms)
*The specifications are subject to change without notice.


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