Quote Originally Posted by msrance
do the changes in signal strength affect the sound output of these satellite recievers? I mean if I get a 4 bar signal strength or a 2 bar - will it affect the final sound output and the Clarity of the output?
Oops...I think I mis-read this question when I first replied to you. Yes, incoming signal strength (off the satellite) probably WILL affect the sound quality. I don't know much about satellite reception, but if it's digital, you may get dropouts on a weak signal and if it's analog, you should get noise and/or distortion. Sorry that my earlier response may have been off-base!
Quote Originally Posted by msrance
when pushed close to max the speakers made this godaweful sound - that I can only describe as a flutter
This sounds to me like the drivers can't handle the volume, especially with low frequencies. The Yamaha's telling them what to do, but they don't have the ability to respond properly. Being DIY speakers, this could be just inadequate design. If you could "roll-off" the bass level to just these speakers, that would probably help, but I imagine the Yamaha doesn't have that flexibility. A possible solution would be to put a capacitor in series with those speakers. That would pass only the higher frequencies and block the low ones. You'd still get the low frequencies from your "A" speakers and sub.

Anyway...that's just my "guess". Perhaps some others will have some other ideas about what's wrong.