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View Full Version : Car speakers VS marine speakers



Turnt Audio
03-12-2013, 11:02 PM
What's the difference between the Polk MM651 and the Polk MM651UM (marine)? I know they are both listed as marine speakers, but is there any difference in performance?

Why So Cereal?
03-12-2013, 11:03 PM
nothing I noticed after listening to both

Wacky7
03-12-2013, 11:54 PM
I see different panel covers that about it..