I demo-ed (in store) the 1802(?), 2802, 3803, and Sony ES something ($500 on sale). They all sounded identical in DD 5.1 with MIB playing through Klipsch Reference speakers. I thought maybe, just maybe, the Denons had more midrange resolution, but the wife said, "No, they sound the same." The power differences are apparently negligible in real world applications. Maybe the 3803 has better bass management features?