These are model r150's hardly used as our new place had a lower apt and they were just too loud for the tenants, but I guess that's a good thing :) They currently go for 189$ but ill throw in the wall mounts as a package for 150. the mounts alone were almost 100$. check the link for reviews and specs.
http://www.amazon.ca/Polk-Audio-Two-Way-Bookshelf-Loudspeakers/dp/B000MGNDHE