JBL Synthesis SDP-3, SDP-2 Digital Surround Processor/Controller

JBL Synthesis SDP-3 Digital Surround Processor/Controller TESTED

Rotel RDA-975 Digital 5.1 Ch Surround Adapter & Processor Works! Includes cable!

Rare JBL Synthesis SP-MKII Surround Processor Preamp

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

Technics SH-AC500D Digital Surround Processor - No Remote

Rare JBL Synthesis SP-MKII Surround Processor Preamp

Kenwood SS-992 AV Surround Processor - tested