We purchased a pair of rock speakers from Costco last spring and I hooked them up to stereo system out in pool area. They were about $75 for the pair. Sound and tone quality was great as well as volume when cranked up. I wouldn't recommend hooking up 100watt system to them, but something like a shelf top unit or c/d player( we use a sony 3/cd , cassette,tuner combo) should work fine. Weathered the summer in direct sunlight and and rain in great shape. Getting ready to hook them up for second season.

Thank you! Nope, I wouldn't want to hook anything fancy up to them....just want some 'tunes! Right now, I have an old stereo system (complete with an 8 track player in it! LOL) in my barn, and if I want to hear music in the yard, I put the speaker in the window and crank it up. But I'd love to have some tunes on the back deck!
Angie