Ampeg Opto Comp Analog Optical Compressor Pedal powered-speaker It fits over the plastic

It fits over the plastic trims of the mixer

TRS pedal input

local mic input routed to main L/R

which will fit any sound reinforcement application and professional PA hire stock

Or combine them with Slip Mode to activate Slip Loop

Ampeg Opto Comp Analog Optical Compressor Pedal powered-speaker It fits over the plasticThe Ampeg Opto Comp Analog Optical Compressor pedal utilizes an optical circuit to deliver smooth, vintage style compression to add headroom and sustain to your guitar or bass. Dial in a fast, subtle style to control peaks or crank up the compression to add a unique character. Bring your tone to new heights with the Opto Comp Analog Optical Compressor.