For those of us using a separate amp for the front L\/R channels, what about the pre-out voltage on these Yamaha and Denon AVR's with respect to their ability to drive power amps? I saw in one of Amir's Denon reviews that the output was very good up to about 1.4 volts, after which distortion rose. Well, my power amp's input sensitivity is 2.7Vrms. I also saw in Gene's review of the A6A that the XLR pre-out put out something like 8 volts and the rca pre-outs somewhere around 4 volts. But at what distortion level? Is this an issue for my power amp? \n\nI'm needing a new AVR and considering A6A, 3700, 4700, or used 6500.