…”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.
The sound of my HT has increased beyond anything that I have lately tried so the old Marantz is staying a bit longer yet.
I’ve even rediscovered my CD collection with my Rotel RCD-965 with Burson plus clock.
Keep up the good work”…
Edwin
The System
Listening with
Burson
- Supply voltage: ±5 V to ±20 V (absolute maximum)
- Gain-bandwidth product: 50 MHz (at 100 kHz)
- Dual or single: dual and single
- Package: dual 40 mm × 16 mm × 20 mm; single 40 mm × 16 mm × 14 mm; 8-pin
Also in the system
Specs from manufacturer data unless a source below says otherwise. “calc.” values are worked out from those figures (V = √(P × R); 110 dB SPL used as a loud reference level). Gear listed without specs is not in our spec library yet.

