Well here's the situation, i have a 2 channel amp (onkyo m150, 2x150) and a 5 channel adcom (3x100,2x60). For the last few months i've been running my mains off the onkyo and everything else off of the adcom. Of note, i've been using channels 1+2 to drive each VC of my Adire Shiva EBS. Well i've bought a Hypex HS200 plate amp to power the Shiva (mainly because i wanted more x-over flexibility that my preamp wasn't giving me...and i got it for a great price). So now I have two extra channels, and i'm hunting for ideas on what to use them for. I am not interested in goining to 7 channel due to space restrictions (and a new preamp would be required!). I would be willing to entertain any other ideas. so far i've thought of the usual suspects --pseudo biamp, sounds dumb to me since i can't defeat the xover on my speakers. and the power ratings are different for the channels i have available. --a second,SQ subwoofer for music--however i'd have to get an external x-over to solve my current problem (that the Hypex is solving...) --DIY bookshelf speakers for zone2. my preamp has a workable zone 2, as long as i have the amp channels. so this is possible for better music in my bedroom. Cons: I have to run cable across the apartment and i have no control over the source playing. any other ideas I'm missing? suggestions?