Thanks for the replies.
Bob - When I was at the local shops, it looked identical front & back to a 740. You may very well be correct with it being a 640, though. Regardless, it seems to drive the 4ohm 80's with no sweat. More than once, I ran it hard for over 2 hours, and it didn't even get as hot as my old Luxman did.
Jack - Absolutely no offence taken. I deal with the public on a daily basis, and you can't make any assumptions regarding a person's intelligence, knowledge or skill level. (It is amazing how many people still don't know there is a filter on their furnace.)
Yes the DVD's had the dts track. I would choose this option from the menu and the sound would go completely dead.
Nope, only one connection at a time - coax OR optical.
Never - Don't laugh. It is a Goldstar DVD3230NC that I got as a gift about 3 to 4 years ago. Not my first choice by any means, but it has never hiccupped, not even once.
Mobo - There you go. On the player's internal setup it was set to PCM only. I switched it to PCM/STREAM and voila! dts-es 6.1 in all it's glory! Thank-you.
Shawn