I am using Klipsch RF-35's, and a pioneer vsx-d811s. I'm looking for a little more power out of this unit and as opposed to getting a new reciever I am thinking of buying a multichannel amp. However I do not know much about amps, and don't know what brands would be the best to go with. Max continous power on the speakers is 125watts/500watts peak, the reciever claims to push 100watts (not sure if thats all channels driven though).