If you have a 3808 as I do, you should be using Audyssey's Dynamic Volume and night or evening mode. That way you still get great dynamics and don't wake up the family. An external amp or dual centers will not give you this.

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