Mcintosh MA6600

Looking for some advice here. I want to upgrade my Integrated and eventually speakers, but one step at a time.

Current setup: Metrum Ambre (Streamer) > Metrum Onyx (DAC) > Rotel RA 1572 with Rotel 990BX > B&W 683S2

I've been thinking about Mcintosh for a long time and want to take the plunge with an Integrated.

I need to be able to use XLR from DAC to Integrated. Will hook up turntable as well.

I will either get new 700 series B&W or used Diamond (bookshelf)

The MA6600 seems to be a good choice, but wanted to see what everyone else thinks. Mostly looking at used prices

Budget $3-4k

I've owed my 6600 for 2 months now. I just can't wait to fire her up every day. 
This is most certainly my last amplifier. Friends have equipment they paid far
more for and can't believe how much more musical this puppy sounds.  
I couldnt be happier. 😀
I'm driving Harbeth 30.1's with the MA6600. 
Oracle Alexandra with a Grado cart at the front end. 
Jazz, Blues and Rock in that order is what I listen to. 
This set up impresses anyone who hears it. 
I think for the $$ it sounds amazing. 

kfz03110, what is the "updated 7200" which you mention? What updated did you do?