Feel the need to express yourself fully? M-Audio’s EX-P expression controller pedal works with all M-Audio MIDI controllers that have an expression pedal input. A built-in polarity switch insures compatibility with most other brands of controllers and keyboards. Use the EX-P to control any assignable variable MIDI controller value including volume, modulation, panning, filter sweep and more. Durable molded construction with integral cable.

Product Page

Review by reddit /guitarpedals

Demo by Rob L

Demo by Stamatis Stabos

Expression

With the AIR 192|4, you can create flawless 24-bit/192kHz studio-quality recordings with an intuitive and easy-to-use audio interface. The AIR 192|4 enables you to record up to 2 channels at once with its dedicated XLR+¼” balanced combo input, and an all-new ¼” instrument input that has a specially-designed gain and impedance stage to provide the most accurate representation of a guitar or bass plugged directly into the interface.

Review by higher Hz

Demo by expert island

Official Product Video

Review by GemTracks

Manual

AIR 192-4

Review by bonedo

Demo by Christopher Ashworth

M-Track 2x2

EX-P 

M-Audio SP-2 | Universal Sustain Pedal with Piano Style Action For MIDI Keyboards, Digital Pianos & More, Original Version, 1 Function

Demo by Jack Picks

Demo by Piano From Scratch