Dose anyone know if the Cinema Grand II or Signature Seres amps are bridgeable? I'm looking to do a 7.1 set up & at first thought about using the Cinema Grand 5ch for my center & front & rear surrounds, & than using the Series II Stereo amp for my mains. But I was thinking that if they are bridgeable using two Cinema Grand II or Signature series amps with one being bridged to make it a 3ch for the mains & center, & the other for the front & rear surrounds. The only thing about this is I would have one ch left out still, I have kinda thought I could use the extra ch to bi-amp the center ch but I wasn't sure. Or dose anyone have any good suggestions for anything around or possibly cheaper than the Sunfire's with similar power ratings? I will be using my current Sony 5ES for a pre amp & right now I have all Polk speakers but will most likely be changing them soon for something else. Thanks for any help or suggestions.