Number of audio record/playback channels:
-- Record: 1 pair of stereo

-- Playback:1 pair of stereo

-- Full duplex (Except 96 kHz)

Signal processing:
-- PC interface: 24 bits

-- AD/DA conversion; 24 bits (linear)

-- Internal processing: 32 bits (effect processing)

Sampling frequency:
-- Digital output: 44.1/48/96 kHz

-- Digital input: 44.1/48/96 kHz

-- AD/DA conversion: 44.1/48/96 kHz

* ADVANCE SWITCH = OFF: 44.1 kHz only

Frequency response:
-- 96.0 kHz: 20 Hz to 40 kHz (+1 dB/-2 dB)

-- 48.0 kHz: 20 Hz to 22 kHz (+1 dB/-1 dB)

-- 44.1 kHz: 20 Hz to 20 kHz (+1 dB/-1 dB)

Nominal input level:
-- Line input jacks: -10 dBu

-- MIC input jack (XLR): -45 to -12 dBu

-- MIC input jack (except XLR): -45 dBu

-- GUITAR input jack: -30 dBu

Nominal output level:
-- Line output jacks: -10 dBu

-- Residual noise level (input terminated with 1 k ohms, MAIN VOLUME: 0 dB, Monitor: OFF, IHF-A typ.) -105 dBu or less (SN ratio: 108 dB, typ.)

Interface:
-- USB

-- Digital input/output

-- Optical type

-- Conforms to IEC60958 consumer format: PCM/AC3

Effects:
-- 1. Mastering: Noise Suppressor/Enhancer/Multi-band Compressor-Limiter

-- 2. Listening: Center Cancel/High Boost/Low Boost/Reverb

-- 3. Performance: Voice-change/Amp-Simulator and Distortion/Chorus/Delay

-- 4. Tube-amp simulator: Tube-Amp-Simulator/Multi-band Compressor-Limiter

Connectors:
-- Line input jacks (L, R) (RCA phono type)

-- MIC input jack (XLR type, balanced, phantom power +48 V)

-- MIC input jack (miniature phone type, plug-in powered)

-- GUITAR/MIC input jack (1/4 inch phone type)

-- Line Output Jacks (L, R) (RCA phono type)

-- Headphones jack (stereo 1/4 inch phone type)

-- Digital input connector (optical type)

-- Digital output connector (optical type)

-- MIDI connectors (IN/OUT)

-- USB connector (USB Type B)

Power supply: supplied from the computer

Current draw: 360 mA

Accessories:
-- Owner's manual

-- Advanced operation manual

-- USB cable

-- Driver CD-ROM

-- Sonar LE CD-ROM

System Requirements
Windows:
-- OS: Microsoft Windows XP Home/XP Professional/Me/2000 Professional/98SE/Vista

-- Computer: Windows compatible computer equipped with a USB 1.1 port

-- CPU/Clock: Pentium, Celeron or Pentium compatible processors / 600MHz or higher

-- Memory: 120MB or more

-- Hard disk: 120MB or more of free space

Macintosh:
-- OS: Mac OS X v10.2.3 or later, Mac OS 9 * Mac OS X Classic Mode is not applicable.

-- Computer: Apple Macintosh series with on-board USB 1.1 port

-- CPU/Clock: PowerPC G3/600MHz or higher * PowerPC G4 or higher is recommended.

-- Memory: (RAM) 256MB or more

-- Hard disk: 120MB

-- Software: OMS 2.3.5 or later, FreeMIDI 1.35 or later (Mac OS 9)

Size and Weight
Width: 171 mm; 6-3/4 in.

Depth: 127 mm; 5 in.

Height: 44 mm; 1-3/4 in.

Weight: 0.3 kg; 0 lbs. 12 oz.

* Compatible with USB 2.0 compatible port. Work as a USB 1.1 device without changing the specifications and performance.* Supports 5.1channel surround output through S/P DIF port (Dolby DIGITAL and DTS 5.1 channel) ONLY when using the UA-4FX on Windows XP. Intervideo's WinDVD Version 5 or later is required (sold separately) for playing 5.1channel surround sound.