I recently aquired A7's as my front mains. Center A6, surround A3's, and rear surround polk R15's. Everything is great, except I noticed these A7's are very thirsty for juice. I purposely went down from A9's for this reason. However, I do believe (and according to everything I've read on many forums) that more amplification is required for these bad boys. Currently we're looking at possibly 95w a channel on a really good day, and less when the whole 7.1 system is running. My situation is this, I would like to keep my existing receiver, and disconnect the bi amp posts on the a7's and use only the midrange/tweeter out of my receiver while powering the two woofers with an additional amplifier. I'm curious what amplifier would be good for this job? I'm not looking to blow the roof off my house here. I'm looking to take some of the strain off my existing receiver and give these speakers what they deserve. I'm thinking a 2 channel amplifier with a gain control knob to control how sensitive the volume will be as I turn it up on the receiver to try and match with the midrange/tweeter. I don't want to get really complicated and expensive with having 2 amplifiers that power each speaker in a full fledged bi/amp setup. I have a lot of knowledge with car audio, but this is a bit over my head as there's so many amplifiers and most are all designed for pro audio setups/cabinets. I don't want some ugly contraption that looks out of place in front of my tv either. Input would be greatly appreciated.