I've been running 8 ohm speakers in the HT and in Zone 2 kitchen. Upgraditis has me looking at Monitor Audio which are rated at 6 ohms. My Pio Elite 84 can be switched from 8 to 6 ohms to push the new speakers. Question is what problems am I going to encounter still using the two 8 ohm speakers in the kitchen when I switch the Pio over to 6 ohms?