


Polk 5.25" Coaxial Speaker 135 Watts max DB521
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Polk 5.25" Coaxial Speaker 135 Watts max DB521Overview Polk 5. 25 2 Way Speakers (Pair) Features 5 1 4 2 way Cars Speakers (Pair) Dynamic Balance Polymer mica Composite Woofer With Butyl Rubber Surround 3 4 Pivoting Liquid cooled Silk polymer Composite Dome Tweeter Neodymium Tweeter Magnet Kapton Voice Coil Built in 2 way Crossover Network ABS Wheel design Grilles Stainless Steel Mounting Hardware Marine certified For Use In Boats, Convertibles, Motorcycles, And ATVs Power Range: 4 45 Watts Rms
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- Final sale items are not eligible for returns or exchanges.
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4.8 ★★★★★
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Product Reviews
★★★★★ 2
Good finish, poor hardware.
Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly.
Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration.
Ended up running self tapping screws thru parts to complete assembly.
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Reviewed in the United States on February 26, 2024
★★★★★ 1
Kinda flimsy…
Thought the assembly was metal, it’s some kind of PVC.
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Reviewed in the United States on September 22, 2025
★★★★★ 5
Stable and easy to assemble
I used these to support a heavy piece of countertop would to create a side table. Looks great and holds steady.
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Reviewed in the United States on February 15, 2023
★★★★★ 5
Great
All pieces cut to perfection, went together perfectly
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Reviewed in the United States on October 22, 2023
★★★★★ 1
Some of the components are plastic
This is not a heavy duty application what so ever . One of the flanges broke . We do not recommend this product
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Reviewed in the United States on July 5, 2024