A:AnswerNo. Just plug it into "L". All of the directional information is in the higher frequencies and the sub's crossover will eliminate them anyway. There's no real directional information in the bass frequencies because humans can't localize low frequencies. So even when you plug it into the "L" only, when the tyrannosaurus (did I spell that right?) walks from left to right through your living room, it will sound correct. This is exactly how mine is wired and it sounds perfect.
A:AnswerYes, but it doesn't shut off immediately as soon as you turn off your receiver. I think it takes a few minutes. Not entirely sure on the time, but it will turn itself off if you have it set to auto.
