HI All I have a quick question that i hope some one will be able to answer. I am finding that the 818, in a 7.1 setup, seems to struggle with some sound tracks at high levels, especially if the sound track is busy. It starts to sound rather busy or harsh and I find myself lowering the volume to improve the staging. Reading and speaking to people its seems this happens because the amp is struggling to drive all the speakers. So to improve this I am thinking of add external power amp the improve the sound staging. this should take the loading off the amp and improve sound quality The idea is to let the AVR power the back speakers while the power amps drive the front three L/C/R. Am i right in assuming to achieve this i simply have to connect the relevant pre outs from my amp to the in puts of the power amps. Then connect the LCR to the power amps. And if i want to move to a 9.1 setup i simply connect the pre-outs from the FW/LR to a second power amp. Speakers which are all B&W s3. Front L/R 603 S3, Center LCR 600 s3 Rear L/R 601.2 SB L/R 600.