Hi, I want to use my Yam 640 to run only the centre and rear channels in my system but use my stereo amp for the fronts speakers and connect the sub (which has own amp) to either the av or the 2 channel amp. The Yam has outputs for the sub and front speakers but how do you hook these up. The sub has both phono (left and right) in and also speaker cable in. So if I run the yam sub out AND fronts out from the phonos on the back then I would have two phono's going into two inputs on my integrated. Is this right - what would I set the input knob to on the integrated ? Thanks.