Dennon is nice but dollar for dollar I'd get an interga amp. Look at the headroom specs of both,this can be important if you listen at high decible levels.Movies can easily push some amp past the point of clipping,many instantanious peaks that some amps cant cope with.
sound is like drag in an A/C,to increase the level 3 Db you must square the power,have a 9db peak and see how much power is required!
YMMV.