The ROSS Compressor is an OTA-based vintage-style compressor. It faithfully recreates the coveted Era 2 Gray Box ROSS Compressor circuit. Welcome to the new era of ROSS pedals. After countless hours of research and design, these pedals bring the story, legacy, and sound of the original ROSS brand to guitarists and collectors around the world. Featuring five classic ROSS circuits, this series offers every player something to enjoy from the original ROSS pedals. Each pedal is manufactured in the classic ROSS enclosure style at JHS Pedals' facility in Kansas City, Missouri to the strict quality standards you expect. Improvements from the vintage units include soft-touch bypass, low noise, and a mode switch with two settings for added versatility. Input/Output terminals: 1/4 input jack, 1/4 output Controls: LEVEL, SUSTAIN Switches: MODE switch, bypass switch Power supply: DC9V center negative Current consumption: 37mA Dimensions: W 8.9cm x D 12.7cm x H 4.3cm Weight: 500g