Cranetortoise GC-1 Great Compressor A renowned compressor known for its natural compression without thinning the sound. Excellent for guitar and bass. Perfect for cutting and slapping. - Brand: Cranetortoise - Model Name: GC-1 - Type: Compressor - Included: Instruction manual, dedicated adapter One knob is missing, but it functions without issue. Please consider only if you understand this is a used item.