Hi, Newbie posting for the first time with a quick question. I have the Sony NS755V DVD/SACD hooked up to a Sony DA4ES through both optical and through 5.1 channel out to the receiver (why does the SACD function doesn't work through optical????). Now when I play a SACD, I select Multi Channel on the receiver and the music comes through just fine, but I'm curious to know why the EQ on the receiver is disabled? The different sound fields are nice and all, but the sound quality is lacking due to the inability to adjust the EQ. Any thoughts on what I can do?