pre-amp processor

5 HDMI 2.1 Inputs Instead of 8 HDMI 2.1 is not relevant in my opinion.

There are no Blueray player that are 8K .

Apple TV and NVidia Shield Pro are 4K

I think , only gaming gears like PS5 ( ? ) and others , are 8K.

Some television are 8K , but for the 8K effects , you need at least  85 inches.

I know the previous McIntosh MX-160 used the Lyngdorf DSP and processing board, but used all McIntosh linear power supplies and audio stages.  The MX-170 probably uses the same architecture since it also includes RoomPerfect.  That's the way I would go if you have the budget (either used MX-160 or a new MX-170).

McIntosh gears keep their values over time 

If you want 2.1 HDMI  , DTS X Pro , and your are mostly  ´´digital ´´  Lyngdorf is the way to go instead of McIntosh.

McIntosh is always , a litlle late in the game.

Maybe McIntosh MX 180  will have these  features.