I had decided on a Sony 3ES, it's a large unit. I assumed with quality components and a very flexible bass management and EQ controls on a per channel basis. Also, may have 50Mhz component switching according to many sites, but not listed in manual or by Sony. Anyhow, just before I purchased it I seen a Yamaha 730 for about the same price, so I asked to compare the 2 units on the same speakers, Polk Towers. I wanted to like to 3ES having made my mind up on it, but in the end I left without it. I was disappointed to find the Yamaha sounded better than the 3ES. If the music was simple they were similar, but when it got involved the Sony lacked. The background seemed to become blurred. The salesman left me alone in the demo room free to change settings, speakers, anything. I did, I changed various settings, music, but everytime I felt the Sony just wasn't right. Was it a bad speaker choice for the 3ES or just personal taste coming into play, looking at the units and specs the Sony should be better?