The Alesis iO2 express is a superb value USB audio interface with 24-bit processing. Not many interfaces at this price offer such signal integrity, let alone MIDI compatibility, built-in phantom power for microphones and a FREE copy of Cubase music production software!

Durable in design, the Alesis IO2 is packed with excellent features. Powered by USB, it is perfect for laptop recording and ideal for use with microphones, interfaces or general audio signal recording. The 2-channel operation means you can record 2 mics, instruments, audio devices or any combination there of, at once. It will also interface a MIDI signal via USB to traditional MIDI devices.

Onboard hardware monitoring for headphones and mixing desk style level controls add to the performance and flexibility of the IO2 express.

Together with the FREE included Cubase LE software, the Alesis iO2 express lets you put together a comprehensive computer music production station at an amazingly affordable price.

SYSTEM REQUIREMENTS
Mac: OS X 10.2+
Windows: XP, Vista, or 7
USB port

FREQUENCY RESPONSE
MIC/LINE IN to USB OUT: ±0.1dB
MIC/LINE IN to MAIN OUT (through ADC/DAC) ±0.35dB

SIGNAL-TO-NOISE RATIO (SNR)
MIC/LINE IN (balanced) to INSERT OUT: 110dB A-weighted, input impedance at XLR or 1/4" jack = 600 Ohms
GUITAR IN (unbalanced) to INSERT OUT: 99dB A-weighted, input impedance at 1/4" jack = 600 Ohms
MIC/LINE IN (balanced) to USB OUT: 99dB A-weighted, input impedance at MIC or LINE jack = 600 Ohms
GUITAR IN (unbalanced) to USB OUT: 94dB A-weighted, input impedance at 1/4" jack = 600 Ohms
MIC/LINE IN (balanced) to MAIN OUT (through ADC/DAC): 97dB A-weighted, input impedance at MIC or LINE jack = 600 Ohms
MIC/LINE IN (balanced) to MAIN OUT (through direct monitor): 95dB A-weighted, input impedance at MIC or LINE jack = 600 Ohms

TOTAL HARMONIC DISTORTION + NOISE (THD+N)
MIC/LINE IN (balanced) to INSERT OUT: <0.001% Input Gain = minimum, 1KHz input signal, INSERT OUT = 5.7dBV
GUITAR IN (unbalanced) to INSERT OUT: 0.034% Input Gain = minimum, 1KHz input signal, INSERT OUT = 5.3dBV
MIC/LINE IN (balanced) to USB OUT: 0.003% Input Gain = minimum, 1KHz input signal, USB OUT = -0.3dBFS
GUITAR IN (unbalanced) to USB OUT: 0.034% Input Gain = minimum, 1KHz input signal, USB OUT = -0.7dBFS
MIC/LINE IN (balanced) to MAIN OUT (through ADC/DAC): 0.005% Input Gain = minimum, 1KHz input signal, MAIN OUT = 5.6dBV
MIC/LINE IN (balanced) to MAIN OUT (through direct monitor): 0.006% Input Gain = minimum, 1KHz input signal, MAIN OUT = 5.6dBV