The Alesis iO2 Express USB Audio Interface is an affordable yet efficient way to improve your computer's audio quality in home and project recording applications. The iO2 is a USB powered audio interface with 2 line/guitar switchable inputs, 2 balanced XLR microphone inputs with 48V phantom power, 1/4" phone TRS inserts for connecting external processors, stereo and headphone outputs for monitoring.
The layout on the compact iO2 delivers easy accessibility to level controls, line switching, etc. A copy of Steinberg Cubase LE is included for users who are just getting started with software audio recording. The Alesis iO2 is easy to install and operate, and is well suited for musicians, singers, podcasters, DJs, audio for video applications and much more.
| 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 |
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 |
| THD & Noise |
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 |