JBL Synthesis SDP-3 Digital Surround Processor/Controller TESTED

Rare JBL Synthesis SP-MKII Surround Processor Preamp

JBL Synthesis SDP-40 Digital Surround Processor Controller - For Parts or Repair

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

JBL Synthesis SDP-40 Digital Surround Processor Controller Working No Remote

Powers On - UNTESTED JBL SDP-2 Synthesis Digital Surround Processor / Controller

JBL Synthesis SDP-40 Digital Surround Processor Controller - For Parts or Repair

JBL Synthesis SDP-3 Digital Surround Processor/Controller TESTED