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View Full Version : Car speakers VS marine speakers



Turnt Audio
03-13-2013, 12:02 AM
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?
03-13-2013, 12:03 AM
nothing I noticed after listening to both

Wacky7
03-13-2013, 12:54 AM
I see different panel covers that about it..