Technics SH-AC500D Dig. Surround Processor. Clean, works, orig. box/manuals.

Technics SH-AC500D Digital Surround Processor Dolby AC-3 DTS No Remote

Kenwood SS-992 AV Surround Processor - tested

Sony SDP-E800 5.1 Surround Processor LaserDisc AC-3RF Dolby Digital Decoder READ

Onkyo ES-600PRO Dolby Surround Processor Vintage , 3Channel, Great Sound!

Vintage Fosgate FOUR Audionics Digital Servo Logic Surround Sound Processor

Yamaha DSP-1 Natural Sound Digital Sound Field Processor No Remote Tested Works

Vintage Audio Source Model SS Two Surround Sound Processor .