If you have a receiver that is rated at 100watts per channel, and you have to crank the volume to maximum, there is something else wrong, and another beefier receiver and/or amp is not going to help. You have an input source level problem. Your telling us that for DVD movies, you have to crank your volume to maximum?

Something is not adding up.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85