Hi there,
re the volume issue. The very same happens with my DAV-IS10, however, I was told this on numerous occasions before I bought it so was well prepared for that.
I'm watching a film on sky at the moment through the Sony speakers connected to the sky box with with a Digital optical. I'm using the PLII Movie sound field and they're currently cranked up to 68 (just had to turn it down to 62 cos the neighbours knocked on the floor upstairs re the bass.) It sounds great and to be honest, the volume level doesn't bother me anymore. Got used to it after about two days.
I personally think the system sounds wonderful with everything. Even music sounds fantastic when you get the sound settings as per your preference. I was expecting the music performance to be a bit shabby but it's handled everything i've thrown at it (Foo Fighters, Dance Music and Northern Soul) very very well indeed.
I do agree the volume issue is a little annoying but then again, I don't see the point in having volume capabillity that I'll never EVER use. As it stands, DVD's can be played louder than required as can CD's and my I-pod. TV is ever so slightly lower but nothing worth moaning about and still louder than required.
Maybe if I lived in a house in the middle of the country with no neighbours to bother me and had a MASSIVE livingroom then i'd be looking for a bit more oomph. But if that was the case I wouldn't have gone for this system.
For me, and as they say on the telly, it does exactly what it says on the tin !!
Marty