Title says it all. I'm looking to add a pair of outdoor speakers. That way I can just run them as Zone 2 from my living room. These will be used when I'm out in the BBQ or just outside kicking back surfing the web while enjoying some good vodka/cranberries. I was wondering if a pair of Atrium 55s would do it, though I have zero clue about the Polk outdoor speakers. I haven't even seen them so input is appreciated. Pic included as you can see the area is not very large. Thanks again.