Conclusion: Was looking for a good speaker to replace stock speakers on my ultra. A lot of choices but for the price the Polk was what I was looking for. They bolted right up and sound great, even at highway speeds.
Conclusion: I bought this sound system with the Polk speakers for my wife's golf cart. Ithas unbelievable sound. We also included a sub woofer and amplifier to complete the sound. Now when we pull up to the tailgate party the golf cart is the center of attention.