Originally Posted by batpig
Stan - are you running both speakers in an A+B configuration (i.e. "quadraphonic")? And do you have a subwoofer or any other speakers? Or strictly a 2-channel setup (4 speakers on 2 channels)?
Den: JBLs as "A" spkrs; + 2 small Jensen rear surrounds + 1 small subwoofer
Front Room: Altecs as "B" spkrs
Not "quad" as I remember that term, but 2 separate listening areas: room 1 and room 2. Room 1 has the TV, surround and the SW. Room 2 is just for music, no TV or other requirements in there, just simple stereo 2-spkr listening.
The one issue with running A+B together (if I am assuming correctly that is what you are doing) is that modern amps do not have the "balls" of some older amps, and older speakers tend not to be as efficient and easy-to-drive as modern speakers. I don't know about your speakers specifically but this may be an issue trying to run all four speakers off two amps.
Ouput levels do not seem to be a problem. The Altecs are very efficient, JBLs less so. So there is a bit of an imbalance in terms of perceived tone and volume when walking from one room to the other, but that's not a problem in the way we use it. It's the overall sound "color," mostly low-end freqs on both A and B spkrs that is really anemic (at least as compared to the JVC amp and my ears).
It you are running this A+B setup, I would suggest you hook up the "B" speakers to the SURR.BACK speaker terminals (not the "B" speaker terminals) which can be reassigned to power the front channels, so you will have four amps for four speakers. At the Audyssey setup screen set AMP ASSIGN to "FRONT B BI-AMP" and set the Front Speaker setting to "A+B", and then it will equalize the two speakers summed response together and you will have more power/headroom available with one amp per speaker.
Yes, it's running as A+B. I can try what you suggest but first I just want to see if I can get the sound eq straightened out by running the Audyssey thing first. I don't want to introduce too many variables at once.