I think I'm going to add 2 tower speakers. I don't want a loud stereo, just something that gives some music while swimming around the boat and for surfing. I do want to hear it while surfing, don't care so much about wakeboarding. Would a couple of xs 650s be good for this installation? I'm looking at buying them in the monster cans so they match the chrome tower. Thanks for any replies / suggestions. Currently I have 6 wetsounds xs650 speakers in the cabin adn like the sound, just wondering how they work on tower speakers, never had tower speakers before.