- For Unbalanced, Line Level Sources such as AM/FM tuners, casette decks, CD players, computer sound cards, jukeboxes, mixers and satellite receivers. - Use For Adjacent Sources (less than 15 feet from the hos unit) - Compressor Function Helps Prevent Overload And Distortion, activates when the module's input signal exceeds a preset, adjustable threshold. - Compressor Ratio: 2:1 (fixed) reduces the module's output signal level to 1 dB for every 2 dB increase in input signal level. - Connector: removable terminal block.