My room is larger than yours @ 16.5'x17'x 8' ceilings. Effectively your amp has 20w more than mine by Arcam's specs. I had never gotten my receiver up above -10 db before it simply just started to sound excessively loud. Once I did go up to -5 db and the walls were shaking.

You have to also remember that with your amp that you have, the limitation is the power supply. You have 7 channels, but if you are just running your LFR's then you are really using 2(+2) channels. The rear 2 channels are only driving mid's and tweeters that really don't take much power. It's the larger woofers on the front that suck up the wattage. So think of it as using 2.5 channels out of your 7, you are probably getting closer to 300w out of the amp with quite a bit of headroom left over.


Anthem: AVM60, Fosi DAC-Q5
Axiom: ADA1500, LFR1100 Actiive, QS8, EP500, M3, M3comp, M5