Polk bookshelf speakers are undoubtedly an excellent choice for the basic stereo sound system. They offer surprisingly high-quality music when you pair them with a decent amplifier, digital streaming source, or CD player.  In short, we can say that Polk bookshelf speakers are worth every penny you spend on them. Polk bookshelf speakers are very inexpensive and a great entrée into the world of high-end audio and likable sound.