Bizarro, You feel the cbm 170 monitors will sound better than the Polk 550 towers
Well, I've never been a fan of the way most Polks sound... they've always seemed a bit "sloppy" to me.
To be honest though, I've never heard these particular Polks... and sound quality is always a bit "subjective".
I
have heard the CBM 170SE, and found it to be quite a great sounding speaker.
In fact, if I had a little extra cash floating around for a new setup, they would toward the top of the list.
But... the Gigolo business is a bit slow right now... what with everyone & their grandpa thinking
they can jiggle low...
so money is tight...
But I digress...
I think having same exact excellent speaker all the way around, coupled with a great subwoofer and AVR, will give you the music/movie experience you are looking for.
And, if you ever want to move up to a 7.1 system, you can just add 2 more CBM 170SEs.