Polk Audio MM522 MM Series 5.25" Car/Marine/Powersports/Boat Waterproof Speakers

Polk MM522 MM1 Series 5.25" Car/Marine/Powersports Coaxial Speaker Pair

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.

Designed to Perform

Every element of the MM Series is meticulously engineered for high-performance sound. Dynamic Balance technology, a pivoting 1” terylene tweeter, lightweight neodymium motor structure, high-temp Conex spiders and oversized voice coils for increased power handling are brought together with 2nd order high and low pass crossovers for optimum system blending—in short, your vehicle might just become your favorite listening environment.

Ultra-Marine Certified

MM1 Series have earned an Ultra-Marine Certified IP56 rating with their non-corrosive aluminum grilles and fiberglass reinforced ABS baskets, epoxy coated crossovers, water-proof inner and outer surrounds, weep holes for proper drainage and titanium-plated cones—that’s all been salt-fog, UV, and humidity tested. With MM1 Series, you get extra, long-lasting protection against virtually anything mother nature can dish out.

Designed to go the Extra Mile

All Polk loudspeakers rely on our patented process to eliminate electro-acoustic and mechanical issues before they become a part of the finished speaker and are also rigorously tested through Polk’s Klippel distortion analyzers. MM1 Series, in addition to their IP56 waterproof rating and Ultra-Marine Certification feature Santoprene S Roll inner and outer surrounds to eliminate water, dirt and dust from entering the speaker housing. maximize throw, and withstand abuse from marine cleaning agents.

Waterproof Santoprene Surrounds

This attractive high performance material maximizes throw with its ultra-flexible, ultra-durable properties—and prevents the elements from entering the speaker unit. Plus, it combats the harsh effects of boat cleaning agents.

Advanced High-Performance Sound
Every element of the MM1 Series is meticulously engineered for high-performance sound—Dynamic Balance technology, a pivoting 1” Terylene tweeter, UV tolerant titanium plated composite cones, lightweight neodymium motor structure—plus, glass fiber formers, oversized voice coils and high-temp Conex spiders for increased power handling.

Dynamic Balance Technology
Enjoy a rich, clean, full-range sound with our patented Dynamic Balance technology engineered into every MM1 speaker. Rigorously tested and developed by our talented Polk Audio engineers, whose passion rests in the principles of great sound, Dynamic Balance technology features non-resonant materials so you get extremely clear highs, mids and lows no matter what you’re listening to.

Integrated Epoxy Coated Crossovers
With its second order high/low pass system, you’re ensured the right frequencies reach the right speakers in your setup for optimal system blending regardless of the vehicle you’re in or the elements you encounter.

Specifications

Coaxial Speakers
Total Pieces: 2
Included Accessories:
• (2) Grilles
• (2) Mounting Hardware
• (2) Wiring Harness
Drivers Warranty: 1 years
Original Purchaser Only: Yes
Total Frequency Response: 50 Hz → 40 Hz
Nominal Impedance: 4 ohms
Max Sensitivity (1 watt @ 1 meter): 92 dB
Type: 1st Order (Woofer) 2nd Order (Tweeter) at 5.0 kHz
Peak Power Handling: 300 watts
Power Handling (per channel): 100 watts → 300 watts

Dimensions
Driver Complement:
• (1) 5.25" (13.34 cm) d (Round) Dynamic Balance Driver - Mid/Woofer
• (1) 1" (2.54 cm) d (Round) Pivoting Terylene Tweeter - Tweeter
Shape: Round
Diameter: 4.6" (11.68 cm)
Full-Range Mounting Depth - Top Mount: 2.36" (5.99 cm)
Full-Range Mounting Depth - Bottom Mount: 2.56" (6.5 cm)
Shape: Round
Depth: 0.92" (2.34 cm)