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

Thanks!