Bob gave you an excellent advice - yes 2 ch. is all you need for movies as well (that's what I have).
Diamonds are good speakers, but consider these towers for less :Boston acoustics A250 for $119 each. They will have more of the bass you like for sure, and the sound is very good - just google search for the raving reviews they received.
These and the Diamonds are on a different league than the ones you were looking at...Among yours, I like the Energy, Vandersteen 2c, and M&K... shy away from other ones please...
http://www.accessories4less.com/make-a-store/item/bosa250gb/boston-acoustics-a250-2-way-dual-5.25-floor-standing-speaker-ea-black/1.html
Diamonds are good speakers, but consider these towers for less :Boston acoustics A250 for $119 each. They will have more of the bass you like for sure, and the sound is very good - just google search for the raving reviews they received.
These and the Diamonds are on a different league than the ones you were looking at...Among yours, I like the Energy, Vandersteen 2c, and M&K... shy away from other ones please...
http://www.accessories4less.com/make-a-store/item/bosa250gb/boston-acoustics-a250-2-way-dual-5.25-floor-standing-speaker-ea-black/1.html