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In addition to the brands mentioned I am also looking towards KEF, Q-Acoustics, PSB and other suggestions as well. I want to setup a 5.1 and later 7.1
Can someone help
While marantz is undoubtedly a musical avr, it might not be a good choice for HT applications imo. You are better off with Denon or Onkyo. Denon, I feel will be the right mix of music and movie attributes while Onkyo ( and Yamaha) will probably provide brute force kinda movie experience.
if you are going to go for a sub, why go for floorstanders
in your full setup, if you have a sub, you will be crossing over at about 80hz, rendering the bass driver in the floorstanders pretty much useless.