McIntosh autoformers vs direct-coupled output

I have ML 11As and picked up a McIntosh MC452.  I spent a lot of time trying to figure out why I couldn’t get some instruments to sound natural, especially violins and pianos.  I found and bought an older MC7106 6 channel directly coupled amp for my center and future surrounds.  I tried bridging two channels and connected the 11As.  The MC7106 brought a more crisper sound to the instruments, it wasn’t perfect since the sound felt a bit thinner probably due to not having enough current.  Nevertheless the instruments were less muddled than the MC452.

Let’s just say I spent a lot of money working around the MC452 not realizing that it was the primary reason I wasn’t happy with the sound.  It’s a great amp, just didn’t fit my preference paired with the 11As.  

What I learned through demoing a bunch of amps is that ML panels naturally roll off highs and are a tad warm.  Match it with a Mcintosh ss amp with autoformers which is also warm, just doesn’t makes good match, for me at least.  It’s all a matter of personal preference, it may work for some.

I liked Luxman the most, especially the 900 series separates, but budget constraint ended with with the 509X.  Others amps work great as well.  Constellation amps, even their entry level line, seem to resonate as well with ML owners, though I never got a chance to demo then myself.

stereo5, you have repeatedly described the parasound halo series as thin and lifeless. I am not sure what your other components were that you paired it with, but I disagree with your subjective evaluation and think you do a disservice to others who may be seeking opinions on what amps to purchase who might pass on these very good amps.

Viridian:
"Don't all opinions mask subjective bias"?
Of course! Sorry. I might have simply asked for factual technical info to
help me determine a direction.
Georgehifi: M.L. #3 - powered woofer.
To all: I accept the notion(s) that there are better amp choices
available, but I have a limited budget and have a DeWick re-built C-37
which offers the low-level sound shaping I require.  Unless there there is a compelling cost/performance disparity, I'd prefer to continue with a
Mac amp. Now, given my answer to George, what Mac amp - Auto,
or direct, and what power - would be the most suitable, least
compromising pick? 
Most appreciative of your input - all of you!
Bo