Excerpt: Polk Audio has a variety of high-quality audio products. A number of their external audio systems have made it into our review. The Polk Audio Atrium 45 , however, is the least impressive outdoor loudspeaker we reviewed. It has a small frequency response range and a low sensitivity rating. While the Atrium 45 isn't as impressive as other outdoor speakers , it is still one of the 10 best exterior audio system options.
Pros: The Polk Audio Atrium 45 all-weather outdoor loudspeaker has a rugged design.
Cons: It has a limited frequency response and a low sensitivity rating.