Jerome--
Actually, I've used this on all of my speakers (Dolby Pro-Logic) So, It'll definetly work on just your surrounds!
I went ahead and tried it, and it sounded great!
About elminating the hiss--
It may, I know it does this exact same thing for tapes and LP's.
Nathan
[Edited last by...
DBX 1 series 2 Dynamic Range Expander.
Makes your records and tapes sound like cd's and adds an extra 12 decibles of headroom (makes your system louder)
Pristine condition, $900+ new.
$25 takes all.