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Just found this might be worth looking into.

http://www.amazon.com/Legacy-LS558S-5-Inch-TwoWay-Speakers/dp/B0002FR2AO

Might look around in here see if they have what you need.

What exact style pods you have? 6000M?
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The Polk DB651s dollar for dollar are one of the best you can get. There is other brands that are comparable but for what these Polks can do you just cant go wrong with them. I have them in my boat...