I'm considering, nay I need to upgrade my H/K AVR225. I'm quite happy with the H/K sound/design/whatevernot, so all the extra features aside (there are no extra features on the 525 that I use on the 225), is the difference in wattage going to make all that much of a difference. The 225 is 55x5 or 2x65, the 525 is 7x70 or 2x85. Second question. If I was to pick up the Parasound 855A which is 85x5 (I know I'd need a preamp of some sort, but that's for another thread), would the 2x85 performance of the Parasound be markedly different than that of the H/K? Merci.