Yes I did have the speakers out of the holes and covered them also .I ran them upside down also to get the tweeters more at ear level.Yes my sub is old but it really does a good job with the lows .I should go and listen to some new ones and see the difference. I am running a 6003 Marantz,good for 6 ohms 125w each channel or 8 ohms 100w each channel according to the manual.I called the company I bought the receiver from and they say it should handle 4 ohms speakers ,Lots of ventilation and not cranked to the max for hours. He didn't try to sell me an Amp.that's a good sign.Also axiom rep said it should handle the m80's also.
Axiom also said T80's are available now and by the end of February T60 will be available to audition.Same prices as m80's and m60's
It may be worth the drive...