Take Ian's advice......
Good luck with your decision!
Ivan here. We have toyed with the idea of bringing out a pair of monster towers capable of playing down to around 14 Hz. Though it may be more practical in many situations to just use a pair of M80s with two EP800s as this broadens your choices for room placement of the subs.
Other than that, i don't have anything for you man... I have M60's ad am happy with them. I did add 2 8" JLB subs (had them laying around) for the setup that ian is talking about though.
