i feel like there is some clarity and musicality that is lost a bit w/ the sonos, but the convenience of it is just too great to not use it. i have it going to my integra via digital/coax and analog, and when i use the integra's dac (digital output), there is a definite improvement over the analog outs (sonos dac). so i was wondering if an external dac would be better. i don't feel as though they have trouble getting the volume i desire w/ movies or music, just didn't know how much an external amp would/would not help. room treatments would be difficult given it's our main family room, but i try to have good heavy curtains to cover windows, plenty of pictures on the walls w/o glass over them and lots of plush furniture that would do more to absorb sound rather than reflect it. thanks for the thoughts so far.