M-Audio Oxygen 49 IV - USB MIDI Keyboard Controller Upright Bass Strings External side chain inputs are

External side chain inputs are now available

Any hardware device with a control voltage (CV) input can be placed under precise digital control from your favorite audio workstation software

AVANTONE PS-12 Multi-Pattern Power supply with cables

High performance transformer for distortion-free signal transfer and 100% isolation from ground loop hum

M-Audio Oxygen 49 IV - USB MIDI Keyboard Controller Upright Bass Strings External side chain inputs areWhy you need the M Audio Oxygen 49 IV: The M Audio Oxygen 49MKIV is a light, compact, portable and flexible 49 note, MIDI controller, with fader, knob, trigger pad, transport and LCD screen controls. USB powered & comes with Abelton Live Lite and automaps to many popular DAW controllers. M Audio pioneered the portable MIDI controller market with the Oxygen series of keyboard controllers. Today, M Audio continues to be a leader of this technology by