POLK AUDIO MM522. Also found as: Polk MM1 522, Polk MM1 5.25, Polk MM1 2-Way 5.25". Next-level Polk speakers. Series : MM1 (Polk Audio). A low-profile, lightweight carbon basket features excellent venting to keep these speakers cool when you're really pouring on the power.
Very good highs, but nonexistent lows. Good speakers if paired with a subwoofer. I put mine in a Polaris Ranger and they can get loud despite the small size.
1st I have been using polk marine speakers for years ,I recently Purchased these speakers as a upgrade to the stock speakers on my motorcycle ,sadly the bass is lacking vs the stock speakers, I swapped them out and tried some polk db (lower end polks) and even they sounded better overall than these mm series speakers,another issue I had was fitting the speakers into the stock location the position of the crossover and speaker terminals made fitment difficult, I was able to finally get it into thevstock location with some trimming of the stock tube but clearly what they tried to help save you in depth by using neo magnetic was lost with the crossover plate ,sadly I cant recomend them especially at this price point. I suggest you look at the lower end db model or another speaker all together .