Couple quick questions here for anyone who can help: My current setup is as follows: Onkyo TX-SR600 4x Rogers DB101 speakers 2x Infinity Quadrapole rears 1x Infinity P-CC center (rear) Right now, I have 2 of the Rogers wired in serial as my center channel, for a total impedance of 8 ohms. I was wondering if this is at all bad for the speakers or the amp. I figured it would be better considering the Onkyo technically isn't supposed to run speakers at 4 ohm anyway. In any case, I ordered another pair of the Rogers and will be replacing my Infinity rears, meaning that 4 of 6 channels will be run at 4 ohms. Does anyone with experience with this particular receiver know of its ability to drive low impedance speakers? It's doing fine with 2 channels @ 4ohm but I don't want to risk a meltdown with 4 channels like that.