I have a Yamaha AX1 which I love, and I've just bought a pioneer dv 747 dvd player. I've connected the dvd player to the AX1 using both the coaxial digital cable and the 6 channel input cables. Here's the problem, when I try to player sacd's and dvd audio's the subwoofer volume is very very low. I've had to turn it up to nearly the max, but when I use the DD, DTS decoder on the amp the house nearly implodes with the volume. So, i've had to turn down the subwoofer volume by 20db to get it all to match. Not good!!!! I've tried a different dvd player with a 6 channel output but I have the same problem. Help anyone?