Hello,

After 19 years playing music very well, my Onkyo A-8500 (Integra line)
amplifier has problems especially when it's cold (just powered-on).
The speakers level is low and there is distortion.
Switching from the Speakers pair A to the B and back to A can lead to a
different result (better or worse output).

I think that the problem could be caused by a relay that is used to
switch the speakers pair that need to be replaced. The series
resistance of the bad contatcs that is added to the load can be the
cause of the distorsion. I see two relays in the middle of the
amplifier (they seem to be protected from dust/humidity) and a small
one on a hardly accessible little board related to speaker pair
switching (!). The last one may be not so protected from external
agents (transparent cover).


So, the questions:

- Have you the schematic / service manual of the Onkyo A-8500?
- Do you agree with me when I blame the small relay?

Best Regards and MERRY CHRISTMAS

Panino