Polk RC85i Review – Listen music or just watching TV indeed need the best of sound produced. A clear and powerful sound can give the best entertainment for you because you can hear all the things just at home without having to go the theater or cinema. The thing that you need is a speaker. The speaker can give the best sound effect. Polk rc85i is the best audio speaker that has many kinds of series types that are recommended for you. It will be explained more below.