Hi Will,
What Parasound amps are you using? I have the same basic setup; 950, Axiom Speakers and Parasound amps. I use M80ti front’s VP150 center and 4 QS8 for the rear and side surrounds (sides not connected yet). Sound is amazing. The only non-Axiom speaker is the subs; they are the original Cambridge Sound System subs that were designed by Henry. I can maintain a clean 105+-dB sound level in a 20x32 room. I have the pre blue dot 950 and can hear minor hiss from the speakers but not from the viewing location. I was wondering if the upgraded 950's were noticeably quieter.