I have an OLD 1990 Pioneer VSX 9500S. It has the jumper bars in the back of the receiver. I was told that if I pull them out I could plug my amp into those places and use external amp.
The Parasound 806 is a 6 channel amplifier and the receiver has a pair of Preamp output jacks for Front & Rear and one for Center channel. What I don't see on the rear of the Pioneer VSX-9500 is a subwoofer output jack. If you're using a sub and use the front speakers without adjusting their level to hear the rear speakers better, the best way to connect the receiver to the Parasound and the sub:
Decide on a scheme for the channel assignments it doesn't matter to the Parasound if you connect a right channel next to a left channel because all of them are separate. If you plan to adjust the Parasound's input level controls in order to balance the channel levels, I would suggest assigning the channels in a way that leaves no doubt about which channel you're adjusting, without needing to read from a list; something like this-
{Left Rear}{Left Front}{Center}{Right Front}{Right Rear}{Unused}
Here's a link to the VSX-9500 rear panel-
http://i291.photobucket.com/albums/ll310/shaorin-chan/PIONEER/VSX-9500S241.jpg~original
In 1990, the manufacturers didn't organize the rear panel in an organized way, the way they do now. Also, this was before subwoofers were used as often as they are now.
