I have two HK signature series 2.1 amps(100wpcx5). I am using one in my current 5.1 set up which is as follows Front- Infinity IL60 Rear- Infinity IL50 Center- Infinity IL36c Sub -Infinity IL120s Prepro- Proceed Pav/PDSD. The amps are not bridgable. Also the speakers donot have inputs to biamp. Is there a way to combine the two amps for increased wattage?? Would using one amp to drive the fronts and the other to drive rears and center make any improvement? Although the amp is quite capable of driving all five simultaneously . Any suggestions?