Bi-Wire - Ohm and RMS Rating Split

Using my JBL E90's for front mains. These are dual 8" with 1mid and 1tweet. Im thinking about Bi-Wire these E90's. Any ideas on how the 110wpc/440peak @ 8Ohms (per speaker) is split when you Bi-Wire?? Also wondering how the Ohms gets divided up....? They have a max. amp power of 250RMS..I have a Rotel 6channel Amp that is at 100RMS per channel and I want to use 4 of the channels as a pre amp to the bi-wire on the E90's and Then eventually bi-wire the Centerchannel which is the EC35 on my SYSTEM1- thats to be determined later.