This guide introduces the M-Audio O 2, a slimline mobile USB MIDI controller designed for use with laptops. It details the contents of the package and explains how to power the unit via USB or an optional external power supply. The document also covers basic connectivity for Windows XP and Mac OS X systems.
| Power Input (External) | 9V DC output, 250-300mA, center positive |
|---|---|
| Keyboard Range | Total of 11 octaves |
| Pitch Bend Range | Typically 2 semitones, up to 2 octaves +/- |
You can power the keyboard via USB or an optional external power supply, but you must use only one method at a time.
No, because the M-Audio O2 keyboard is class compliant, it will work without any further installation.
Hold down the Preset + and - buttons while switching the keyboard on.