Here is what I want to set up:

1) 5.1 system in living room.
2) Stereo sound in bedroom, playing the same source as living room.
3) Stereo sound in bathroom, playing the same source as living room as well.

The 990 only has a "Room 2" -- which I assume just plays the stereo version of whatever you have going on in the 5.1 part.

If I only wanted stereo in the bedroom, I'd be done.

But adding an additional pair of speakers in the bathroom now means I have to wire them up.

If I just wire all four of these 8 ohm speakers in parallel, I will be showing 4 ohms to the amp. Is that OK, or should I add a "speaker selector"?

I have seen some speaker selectors that -- I *think* -- have a transformer or something that shows 8 ohms to the amp even when you have four 8-ohm speakers.

Could I just add in one of these transformers myself?? Any idea what the specs would be?

Thank you very much!!