If you just put the M80s in there, you'll like them because you have no basis for comparison. smile

Your treatments for M5HPs and a sealed sub will be simpler and fewer in number and may consist of nothing more than stuff you already have like art and a bookcase. And do not over-treat. The Axiom gear relies on reflected sound to portray a sense of spaciousness.

Read my 800 review. The sealed sub made my whole system sound better no matter where I sit!