Marantz SR 8500 7.1 Channel Receiver discrete opamp upgrade by Edwin W.
…”I have successfully upgraded my old Marantz SR8500 Receiver. One burson discrete opamp for the L-R channels the other for the Centre and Sub. I use the Marantz only as a preamp into my RMB-1095.For now I’m using cheap 7*15 regs but look forward to buy some low noise regs from you in the future. […]