MAXON Compressor CP-101 Original Vintage First Edition Made in Japan. It's a compressor of the 70s with warm sound The Maxon Compressor was first seen in the mid 1970's. The pedals were designed to create a long, balanced sustain without adding distortion. The Compressor remains quiet through most rigs and settings and is great for a broader, less squashie compression/sustain that lets the tone breathe.Unit is in perfect working order