Separate Amp for AV receiver

You have quite an array of manufacturers there. The NHT’s show a 86db sensitivity which is not very efficient.
klipsch are usually in the hi 90’s which means they require more current than Klipsch.
the ML 50xt is rated at 94bd thats more sensitive requiring a little less juice.

i dont know what cgl.mtd means.

with this mismatch system im seeing why you are not happy. They all have a different signature. Power wise a nice 7ch 200watt per should do you well, its not going to sound bad, it just not gonna sound balanced.

if you research mastering suites for dolby atmos you will notice rooms with all the same speakers

That could be the issue, I'm keeping the Martin Logan though, what do you think about SVS?

I think the ML should stay. Now theoretically you should match that center with a L + R Martin Logan

Are you in a position for that kinda upgrade

Another question can you illustrate the system, example: my system is a 7.1.4

7 mains and surrounds
4 Atmos 
1 subwoofer….i use 4 actually but since the get their signal from one output, i use the number 1, i think saying 4. Isn’t accurate