I'm sure this has already been posted but I can't find the right search terms! I want to power speakers in the room next to my lounge, it doesn't have to be a separate zone - I want the main room's music to be played in the kitchen at the same time. I have a Yamaha DSP-AX750, MS906 fronts (4-8 ohm) and a pair of budget (6-ohm) hitachi speakers I want to run in the kitchen. Do I just wire them up to the B speaker terminals? Will I cause damage the amp with this load? There's an impedance selector on the back of the amp but I don't understand the manual entry about it!