Korg XVP10 Stereo Expression / Volume Keyboard Pedal.
This massive cast aluminum pedal operates as either a stereo in-line (in/out) volume pedal, or as an expression pedal when hooked up to the assignable foot pedal jack of Korg keyboard / piano products.
INPUT x2 (Volume/Expression SW)
OUTPUT x2 (Volume/Expression)
TUNER OUT (Signal from Input 1 only)
Volume: Input Impedance > 50k ohm,
Output Impedance < 25k ohm, Gain/Loss < –1