Sorry, but I think you didn't read my first post properly and you didn't understand. I don't care about music at all.
My apologies, I read but clearly didn't understand.
If you are just interested in analytical listening then I still think that headphones will give you the best results.
If you want clear dialogue, but from speakers, then I also still think that you can get rid of almost everything. TV is your source?
Then choose a simple passive system ( amp plus speakers) or a simpler active system (just active speakers) and you will be good.
I do not believe that you need a centre speaker unless your amplifier has good avr processing. This just complicates things for you. Simplify and get back to good sound.