A:AnswerWith a powered amplifier, yes. These speakers should not be wired in series, nor connected to a speaker selector. If you do that, you kill the power needed to properly run them, and they will sound awful.
A:AnswerTo achieve this, you will need to also purchase an amplifier or receiver. A basic setup would include an amplifier connected to the RCA audio out on the Television, and the amplifier connected to these speakers.
A:AnswerYes, they work well. I have these hooked up to a connect amp purchased a couple of years ago. Not sure of the specs on the new Sonos Amp though.
A:AnswerAs long as its a standard amp you should be fine. Just make sure it is capable of handling an 8 ohm load per speaker. Don't run more then 1 speaker per side unless you amp can handle more??
A:AnswerIf you have sufficient amplifier power output the speakers should be fine The maximum rating is 135 watts. That should be able to cover a large area outdoors.