Conclusion: Excellent Speaker for the Money. The speaker covers on my Pioneer MR-1640 kept coming off underway on our 40ft sailboat, and eventually cracked and broke. It was less expensive to buy the JBl's. which were on sale at a very nice discount, than it was to buy new speaker covers from Pioneer. The JBL's seem to be more durable and they flat out sound better. Sonic prices and service was really exceptional.
Conclusion: Replaced the existing Sony radio because it was not working when I bought the boat pre-owned. I researched the radios and found a lot of consumers stating this model stops working consistently. I still thought I should replace the radio with what came in the boat, and also thought if I bought an extended warranty I'd be covered if something did go wrong. Well, the radio worked for two boat rides and then stopped working. Yes, I'm covered by the warranty..
Conclusion: I chose these speakers based on the range specifications and price compared to other units. Very happy with my choice, these have excellent sound, even at relatively low volume. Very crisp and clean.
Conclusion: I installed the JBL MS6200 speakers about 6 months ago. They have proven to be a reliable speaker with great sound. So far they have held up to the salt environment very well. With 4 MS6200s I can run 40mph with a loud older 2 stroke outboard and hear the music loud and clear. When compared to Fusion, JL, or any of the other top rated brands I would recommend the JBL for value alone.