I'm new to Club Polk and just have a quick question. I have a pair of LSI-9's for the front speakers in my HT set up. I am powerng them with my Denon 2805, but am thinking of adding a separate power amp (at least a 2-channel), to help with the 4 ohm load. Is this necessary given that I really don't listen to my music that loud, or will adding the separate amp help with the quality of the sound from the speakers too. Thanks for your help.