Needs advice for Power/Int Amp up to ~2700$ (New/Used) - MF/McIntosh

i have no idea what your speakers sound like or what sound you like

but just on my experience with amps, using the criteria of excellent performance, purity/transparency/neutrality, ability to drive most real world speakers, and excellent value (performance for $ spent)

i would say

odyssey stratos/plus

mid level hegel (h120/h160/h190)

schiit aegir monos (if you can run balanced)

 You could add Anthem MCA 225 gen 2 to your list. They should drive most any speaker.

The anthem you've mentioned has perfect specs (same as the MF M6prx). I wonder what makes the difference between these and much more pricier amps which have less perfect specs but are 'known' to be 'better' (better to the listener, so let's say for most listeners?)

My speakers are self-made/designed 2.5 way Scan-speak speakers (2x7" with 9900 revelator). And the next ones, will be similar but probably will have tighter bass response.

I listen to all kinds of music from mainstream to heavy rock.

I like clean sound but not harsh.

I got one more amp into the list: Luxman Lx505uxii.

Have you checked the Parasound Halo Integrated has everything you need

Great sounding good company.