My primary HT speaker setup is all Polk - various sizes in various locations, 4-way 5-element towers up front left-and-right, full sized 6-element 3-way front and rear centers, full sized purpose-designed (switchable bipole/dipole) 3-way rear surrounds, and smaller bookshelf-sized 2-way speakers for the additional spatial effect channels, but all same-brand/same-series, timbre-matched, and tolerant of insane power levels
I use multiple subs, too - the front towers each have very healthy built in powered side-shootin' subs, a dual-12" side-shooter sub is a bit out from one corner at the front of the room, behind and well away from the right front tower, and a more modest, but still very adequately powered, single-10" downshooter sub is on the back wall, at the center of the room. The base isn't "boomy", or otherwise distorted at all - I can't stand that - and it doesn't over-power the sound track, but its definitely authoritative, gut felt, chest-kickin' Low Freq, tight all the way into the sub-audible, with extremely fast, well controlled attack and decay ... a bass guitar sounds like a bass guitar, and bomb or a cannon sounds very much like a bomb or a cannon. A well-recorded gunshot will startle helloutta ya.
For serious music listenin' though - not movies or TV - I generally prefer simple 2 channel stereo through my ancient Klipsch La Scalas. Of course, some rock benefits from includin' the big front sub - another few hundred watts always adds a little somethin' to good rock