Problem with speakers on my sony reciever

[Chyron]

I have a Sony DA4ES Reciever, and I am trying to get my rear speakers to play as loud as my fronts, and still maintain having my subwoofer in the mix.

If i put my rears on the B channel, and use the A+B switch on the front, its fine but I loose the subwoofer and the ability to use the sound fields. If i put the rears in the "surround" jacks on the A channel, they dont get full sound.

I've had this problem with other amps, so I dont know what to do...

[Chyron]