B&K Bi Amp question


On my B&K AVR 507 S2, I've tried to bi-amp my speakers using the zone 1 and 2 amps. My 507 is set up with the 2 rear channel outputs as zone 2. Using each zone to bi-amp seems to work OK except that I can't control volume simultaneously. I have to adjust zone 1, then go to zone 2, and change that. There are quite a few steps in getting from one to the other. It seems to me that I should be able to set it up so that they work together. I've set zone 2 to turn on with zone 1 and use the same input as zone 1.
Anybody know if this is possible? Thanks,
rich58b
Not sure what you mean by "main out". Are you talking about pre-amp outputs? There is a left/right and composite video out for zone B. I'm trying to use the two 150W zone B amps to bi-amp my speakers. I can't get the volume control to control both zones. Seems like there should be some way to do this. If I used Y cables, how would they be hooked up?
Thanks for the help by the way!
Rich
I refer to AVR 507 ( not S2 ) manual, change the Zone 2 level control to Variable.( Page 38 in AVR-507 S2 manual )
If still not work, the only thing I can think of is use a remote control unit equipped with macro function to learn all the required commands.