Still thinking about multiroom setups... In a bedroom and ensuite, I'll have a pair of 6 ohm ceiling speakers in the main room, and a 6+6 ohm stereo speaker in the ensuite. I would like a basic amp (probably fed through an airport express - or maybe a sonos connect soon) to use with these. I'm thinking I need an amp which supports A and B zones, but I would also like to be able to play through both A+B at the same time. Can anyone recommend an amp for this? I currently have a Denon DM38, but it only has a single set of outputs. Is it an option to use a speaker switch along with this? Will I still be able to have A or B or A+B zones playing?