hi there, brand new to this forum and audio equipment. here's what i need help on. i've done a search and read several threads but have not found specific answers to help me. i'm installing a surround sound speaker system in my house, mainly for movies but also music from time to time (extra speaker on the outside patio for bbq's). i was almost sold on the yamaha rx-v630 but then came across the denon 1803. that decision seemed to be a simple one, mainly for the denon's ability to play two different types of audio in two different "zones". movies inside for kids, music outside for adults! then while researching price on the 1803 i stumbled upon the 2802 at only $50 more than the 1803. not sure how much "new" technology the 1803 has that would push me it's way vs. the better sound of the 2802??? what are some recommendations? again, not interested in denon vs something else as the musicality is not as critical to me. just curious in 2802 vs 1803. thanks!