You're overcomplicating this, I think.

90 Wpc Reciever.
Old HT small. Sound good.
New HT BIG. Not loud enough.
Want Amp. Go louder.
Maybe 180Wpc Reciever. Go louder too.

No, I never ran my system this loud in my old HT.

I don't know what you mean by M22s "compressing".

The right main is calibrated to 0 and the left is -1.5dB


I'm 87% certain that I simply need more power now that my room is 6x larger.

M22, VP150, QS8 <--all v2
Sub: Outlaw LFM1-Plus
Denon AVR1910, Sony X900-65"