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Polk Audio MM522 5.25" Coaxial Speakers

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  • Polk Audio MM522 5.25" Coaxial Speakers
  • Polk Audio MM522 5.25" Coaxial Speakers
  • Polk Audio MM522 5.25" Coaxial Speakers
  • Polk Audio MM522 5.25" Coaxial Speakers
  • Polk Audio MM522 5.25" Coaxial Speakers

List Price: $329.00 On Sale: $245.85 (GST Included) (You save 25.27%)

SKU: MM522

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$9.95 Flat Rate Generally ships out in 24 to 48 hours.

Product Info

Product Info

Check out the Polk Audio MM522 5.25" Ultra-Marine Coaxial Speakers' Key Features
(Polk MM522)

  • 12 Month Polk Audio Australian Warranty
  • Peace of Mind Purchase Guarantee (bottom of page)
  • MM1 Series 5.25" Coaxial Speakers
  • Ultra-Marine Certified
  • Low protrusion pivoting 1” Terylene tweeter
  • Dynamic Balance technology
  • 100-300 watts power handling (per channel)
  • 300 watts peak power
  • Grilles Included


The Polk Audio MM522 is a premium upgrade tuned for the total sonic accuracy found in a studio monitor speaker. This pair of 5.25" MM1 Series coaxial speakers is meticulously engineered for advanced high performance sound. The speakers have a low protrusion pivoting 1" Terylene tweeter that ensures clear, detailed high. Its baskets are reinforced with non-corrosive fiberglass, which prevents corrosion and general wear and tear.


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.

Neodymium Motor Structure
Compact lightweight neodymium motor structure provides more output with less power and overall higher efficiency—plus easier drop-in installation.

Glass Fiber Formers, Oversized Voice Coils and High Temperature Conex Spiders
All three combine to create a high efficiency driver, for elevated sound, increased power handling, better linearity, lower distortion and greater durability.

Non-corrosive Fiberglass Reinforced Baskets
Offers heavy-duty protection for back half of the speaker, which helps prevent corrosion and general wear and tear.

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.

Polk Audio - The Brand

Since the founding of Polk in 1972, it’s been Polk's mission to craft high quality, great sounding speakers that are accessible to everyone. For the people of Polk, designing and building authentic audio solutions is their true passion.

Today, Polk remains an American success story. Polk is still proudly based in Baltimore, right where they started. Their engineers and designers now hold more than 65 patents for pioneering advances in audio design and technology. These innovations have influenced the audio industry many times over.

Peace of Mind Purchase Guarantee & Declaration of Warranty
This product is supplied directly via Polk Audio Australia and enjoys the FULL benefits of the 'POLK AUDIO - 12 MONTH AUSTRALIAN WARRANTY'. (You may also be entitled to other consumer warranties as provided by the Australian Consumer Guarantee and these entitlements are not limited by this warranty). Should this product fail, you have the option of contacting the manufacturer / supplier directly.

We are a FULLY AUTHORISED Australian retailer for Polk Audio Australia.

This product will be shipped from our Sydney Warehouse. This product is NOT DROP SHIPPED from overseas.

Tech Specs

Technical Specifications

Qty Included 1 (pair)
Driver Enclosure Type Ultra-Marine Certified
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)
Total Frequency Response 50 Hz → 40 kHz
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
In The Box

What's Included?

  • 1 pair of Polk Audio 5.25" Coaxial Speakers
  • 1 pair of Grilles
  • 2 x Mounting Hardware
  • 2 x Wiring Harness

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