Okay I Bought the Magnepan 3.6's

thanks for the recommendations. I noticed that all three of the X150.5's listed have been sold!

Take another look at Bryston,both companies use each others products when on the show circuit.There is just a natural synergy when these amps and speakers are paired.
A 4BSST,14,and or mono 7's are ideal candidates.

Wait!!! Did you buy the Maggies new or used? If they are new you really need to let them break in for a couple of hundred hours in order to be ale to evaluate amps. The sound of Maggies changes significantly over the first couple of hundred hours and what you describe with the Mac could be attributed to them not yet being run in.

If you go Pass, I would go to the 250.5 or 350.5. I know with my 2.7's they didn't start to sound right until I had 600w/ch per side (4 ohm) going through them. Others have mentioned the big Brystons as they work well with Maggies, and I agree they are worth checking out. Despite what you get, I would make sure you are at least at 500 w/ch.

They are dealer demos, well broken-in... So, you don't think that a Pass X150.5 will do the job?

Yes, I will look at the Brystons too...

I don't think the 150.5 is enough, especially in your room. There is a reason so many are recommending huge amps like the Wyred for Sound, Bryston 14Bsst, or Pass 350.5. The maggies are not very efficient and will run through the 150.5's 300 watts in no time. Going to an amp like the Wyred for Sound or big Bryston will net you another 4-5 db's of headroom, a significant difference.

I like Pass stuff, but think it is extremely expensive and not worth twice as much as Bryston, with the 350.5 running nearly $12,000 for a new one, vs. the Bryston's still expensive $6,000. The Wyred for sound ST-1000 as the comparative bargain of $2000 gives you 1140 watts per side, a 6 db increase in output capability over the X150.5 amp. It also leaves a lot more cash in your pocked for other things.