Best Outdoor Speakers to Withstand the Winter?

Hi Guys,

I was wondering which type of outdoor speakers I should buy, not only in terms of sound quality (which is still, of course, the most important factor) but also in terms of withstanding the winter snow and stuff. 

I still haven't decided which type of speaker to buy, but going off this guide, I have to say that patio speakers sound pretty cool and I noticed that B&W has the AM-1 (http://www.bowers-wilkins.eu/Speakers/Installation-Speakers/Outdoor-Marine/AM-1.html) and since I really like B&W it seems like a pretty good choice - however, I am still worried about the weather.

It says "weatherproof" but I have no experience with exposing audio equipment to the elements.

Any advice or recommendations will be greatly appreciated.

Thanks in advance!