Classic Lexicon1980's Reverb Sound Half Rack Unit Excellent condition with new power supply and owners' manual in original box. Used only in smoke free home studio. Frequency Response 20Hz-15kHz (effect) 20Hz-20kHz (direct) A/D Conversion 16-bits Dynamic Range 85dB typical Input Impedance 50Kohms (stereo) 25Kohms (mono) Output Impedance 600 ohms Power 9 volt AC adaptor Connectors Stereo In/Out (jacks), Defeat footswitch, MIDI In, Thru Programs 16 adjustable presets - Small, Medium, Large Rooms; Halls; Plates; Inverse Room; Gate; Chorus; Delays Controls Program Select, Input Level, Output Level, Mix, Decay Time, Pre Delay Time, MIDI On/Off MIDI Control Editing of parameters using System Exclusive commands; Program Change; Dynamic MIDI parameter control