Feature 

• Proprietary API 2510 OpAmp
• Signature API output transformer
• Adjustable attack and release times
• Wet/dry blend control
• Selectable feedback/feedforward compressor styles
• Buffered bypass

The API Select TranZformer® CMP incorporates API's legendary VCA-type compressor circuit into a versatile and compact guitar effects pedal. Designed to easily fit into your pedal board and engineered to run off standard 9V power supplies, the CMP gives you classic studio-quality compression right at your feet. Other features include a buffered bypass in/out footswitch, adjustable attack and release times, wet/dry blend control, selectable "feedback" and "feedforward" compressor styles, transformer output, and of course the classic API sound.