Hi, I'm looking to upgrade from a Kenwood VR-401 5.1 A/V Receiver to something more modern. I've been putting an unnatural amount of research into the latest receivers and I narrowed my selection down to the Sony STR-DN1040. This receiver seems to be perfect for me with 7.1 channels, built-in wifi, Airplay, plenty of HDMIs, and a beautiful on-screen display. The only problem is that the official specs rate it at 165W x 7 @ 8 ohms 1kHz 0.9% THD 1ch. driven while the Kenwood is listed as 100W x 5 @ 8 ohms 20- 20kHz 0.7% THD 2ch. My 100W 8 Ohm speakers sound beautiful paired with the Kenwood receiver so loosing sound quality when I upgrade is a HUGE con. I downloaded the Sony STR-DN1040 manual and it said that the receiver can also run at 100W x 7 @ 6 ohms 20- 20kHz 0.9% THD 2ch. I know running this would be better given the frequency range. The BIG question here is wether or not there's a difference in sound quality running in the 6 Ohm range vs the 8 Ohm range. Thanks for the help, hopefully this is going to give me some peace of mind.