Having a Kenwood receiver will be an issue if you are running an empeg (and not a RioCar) but there are some sollutions...

I run my 2 RCA's to a 4 channel-amp. I connect my sub to my 4-channels amp's "pass through" RCA connections. I don't really see why you would need the other receiver. The EQ on the empeg rocks... shame to waste it.