Whoops, should have read this one first.

1. The antenna and IRF-6 itself can be in different places. Placing the antenna behind wood shouldn't cause any problems.

2. As I mentioned in the other thread, the IRF6 can actually support up to 4 emitters on each of the 6 ports without additional amplifiers. But if you only use two, yes.

3. I never had any problems with my system... what exactly have you heard? I would imagine sticking it right in front would be extremely reliable, rather than a problem. If the signal's too strong each output port can be adjusted on the IRF-6.