I went from a Yamaha RX-V2500 as a pre/pro with 755 amps to a 990. I would rarely (maybe a couple times a year) listen to 2-channel music with the Yamaha because it wasn't anything special. Since going to the 990 a few weeks ago, I have been listening to 2-channel music about 10 hours a week because it sounds so good. I am actually listneing to music more than watching movies now.