Audio Research CL120 Mono Blocks Tube Amps. Good used condition and sound as big as they look. The item "Audio Research CL120 Mono Blocks Tube Amps" is in sale since Wednesday, April 8, 2020. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps". The seller is "bassgruvn" and is located in Simi Valley, California.This item can't be shipped, the buyer must pick up the item.