Fosgate 360° SPACE MATRIX Surround Processor Model DSM-3610 Untested As Is

Fosgate 360° SPACE MATRIX Surround Processor Model DSM-3603 *UNTESTED*

Carver DPL-20 Surround Sound Processor

FOSGATE AUDIONICS DSM-3608 PRO-PLUS 360* DIGITAL SPACE MATRIX

Vintage Audio Source Model SS Two Surround Sound Processor .

FOSGATE Directional Processor Model 3600- Tested- See Video

RadioShack MPA-200 Stereo Power P.A. Amplifier (100W) Rack Mount w/ VU Meters

Harman/Kardon AVP1 Digital Servo Logic Surround Processor Preamplifier TESTED ✅