Ampeg Opto Comp Analog Optical Compressor, Bass Guitar Effects Pedal, True Bypass and Compression, Power Supply Sold Separately.
• Delivers smooth, vintage style compression
• Dial in the perfect sound with Compression and Release controls
• Output control allows you to maximize sustain and make up for heavy compression
• True bypass, analog design with incredible signal-to-noise ratio
• Roadworthy all-metal chassis construction
• Powered by a 9V battery or 9V DC supply (sold separately)