I recently bought a Sony STR-DH800 from eBay and to cut a long story short I'm getting different volume levels using the same speakers across the various speaker terminals.
I have a multimeter and I was wondering if there is a way I can check the output from each speaker terminal so that I can do a comparisons.
The amplifier has a bi-amp feature to allow you to connect the
Front A and
Front B speaker terminals into a single pair of speakers. However, if you decide not to use the bi-amp you can use
Front A and
Front B speaker terminals independently to drive two pairs of stereo speakers. This then gives you three modes from a button on the front of the unit to change the speaker configuration:-
- SP A
- SP B
- SP A+B
Front A speakers terminals are extremely quiet compared to
Front B. I'm not here to further diagnose why it's quiet or whether I've configured something wrong as I've already done all of that, I just need some readings so that I can prove that there is something electrically wrong the amp and try and get my money back or get it repaired.
UPDATE I connected the two pairs of speakers to the Front B terminals and it drove all 4 speakers at full volume. From a good judgement I would say I was over 90dB. But there is something wrong here as I haven't set the Surround Back (aka Front B) terminals to bi-amp. In fact there doesn't seem to be any difference setting Front B or bi-amp.
I should note that I connected both pairs of speaker to Front A and they significantly drop in proportion to Front B. In other words both pairs of speakers connected to front A aren't the same volume but are very low compared Front B.