Amp Speaker Splitter Stereo Audio Switcher Box Selector 2-IN-4-OUT Passive

Amplifier Speaker Splitter Stereo Audio Switcher Box Selector 2-IN-4-OUT Passive

Donner MAMP2 Audio Amplifier Receiver 600W Optical Coaxial USB Aux RCA Input

Fender Amp Channel Select Selector Foot switch Pedal

Fender Amp Channel Select Selector Pedal Reverb Asst. P/N 0028122000. Untested

PARAMETRIC 3 BAND EQUALIZER electric bass active or passive electronic amplifier

Friedman Mic No Mo Passive Cabinet Simulator

Vintage Original 1980s Marshall JCM 800 Amplifier Impedance Selector Switch