JBL Synthesis SDP-55 16-Channel AV Processor OPEN BOX (...

THIS UNIT HAS BEEN UPGRADED WITH THE NEW 8K HDMI2.1 board that is in the SDP-58!   Unit is still under warranty. Purchased from authorized JBL Synthesis dealer. This is an UNUSED SDP-55, which was basically taken out of the box a couple years ago after moving to a new apartment, but never put i...

THIS UNIT HAS BEEN UPGRADED WITH THE NEW 8K HDMI2.1 board that is in the SD...