I thing what he was using was either a Yammie or a HK... Pre 5.1 stuff tho...

All I know is that I combed the manual, and we've plugged and unplugged, and it's like new stuff that shows numbers for volume won't make the meters more than twitch... His old pre doesn't do 5.1, DTS, etc., but it'll purely bury the needles on the VU meters.