Welcome.
If it was the epic 80 and he bought the sub for $200. I would bet the sub was blurring the M80's. Did you listen with the sub off? The M80's are 4ohm loads and not many amps will drive them.
For your room I would suggest the Epic 80 500 and even the 600 to fill it nicely with sound and I wouldn't hold back on the amp/receiver either. Denon 380X, Yamaha2700 and up at least.
Give Axiom a call as well and see what they suggest.
Any speaker you buy will most likely sound a little different in your own house than in the showroom. Take advantage of the return policy here if the Axioms don't suit you. Maybe even order only 2 at first. They will carry over the extra discounts later if purchased in time.
