Here is my question, sorry to ask and sorry to bother if I am. I am running a Yamaha Rx-v1800 receiver with Orb audio Mod 2, 7.1 surrounds. The center speaker will be a mod 4. I was thinking of getting a 3 channel amp to run the front three channels to take some load off the receiver and get some better sound in the process. Is this logical in thinking or just an unneasassary purchase right now? I have been looking at the xpa-3, acuras 200w x3 and other used options.