Vintage Audio Source Model SS Two Surround Sound Processor .

JBL ESC200 Amplifier Surround Sound Processor Compact Amp Not Tested

Vintage Fosgate FOUR Audionics Digital Servo Logic Surround Sound Processor

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

JBL Synthesis SDP-3 Digital Surround Processor/Controller TESTED

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

Crestron C2N-DAP8 Surround Sound Processor

Technics SH-AC500D Digital Surround Processor - No Remote