I am about to upgrade my gear. Currently I am using a Outlaw 755 with a Pioneer 811 receiver as a pre-pro. The plan at the moment is to buy a 990 to replace the Pioneer. However I am not sure if I want to buy two outlaw mono 200 watt amps to add to the 755 and just have a 7.1 system or buy a 7125 and bi-amp my two front Mirage OM-9s using four of the outputs from the 755. I would also bi-amp the Center Channel speaker a Mirage OM-C2 using two of the outputs from the 7125. The rest of the outpus of the 7125 would power the remaining speakers. The OM-9s and the OM C-2 have jumpers between the four terminal posts. According to Mirage removing the jumpers also seperates the two crossovers in the speaker allowing bi-amping. My questions are, Is this really bi-amping or is a seperate crossover a must? Also will the benefits be worth the expense? Of course I understand each person has a opinion and I welcome all.

Thank you and Happy New Year, LTK

P.S. Is there any use for my ICBM once I have the 990?