MM522

The Premium Upgrade—tuned to provide the unparalleled sonic accuracy you’ll find in studio monitor speakers, but in a durable, ultra-marine certified design, Polk’s MM1 Series mobilizes high-quality sound for an on-the-go audio upgrade that’s way beyond anything you’ll experience from the stock factory set up in your car, boat, motorcycle or ATV.

• Ultra-marine certified (IP56 rated)
• Dirt & water-resistant & tested for salt-fog, UV & humidity
• Used in Automobile, Boats & ATVs
• 5.25" Dynamic Balance® polypropylene woofers
• 1" Terylene Dome tweeters