Sony DP-GA500 Digital Surround Processor - UNTESTED

Lexicon MC-1 Digital Controller Home theater Preamp Surround Processor -UNTESTED

Sony DP-GA500 Digital Surround Processor - UNTESTED, AS IS PARTS or REPAIR

Sony Mhc-6700 Amplifier untested

Vintage VACUUM TUBE AMP Project Sold As Is PARTS REPAIR Untested

Rotel RSP-1098 Surround Sound Processor Preamp Home System AS IS UNTESTED

Parts Repair Untested Integra DHC-9.9 Surround Preamp/Processor. Powers On.

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