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Polk Audio db521 Open Box

5-1/4" 2-way Speakers (Marine Certified) (db 521)

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Power Handling: Peak: 135 watts / RMS: 45 watts • Kapton Voice Coil Former • ABS Grilles • Pole Plate Heat Sink • Stamped Steel Basket • Frequency Response: 60-22,000 Hz

Learn more about the LS-db521-OB

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This item has been discontinued

Description


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Exceptional Quality and Versatility

Step up your vehicles audio performance with Polk Audio's revolutionary db521's. Cutting edge technology has allowed for an efficient speaker that has ability to accurately reproduce music like you have never heard before. A precise balance of materials including the Silk/Polymer Dome tweeter and Mica Cone woofer enable smooth roll-off and quick response at any volume. The rubber surround adds to bass response as well as increases the lifetime of the speaker under any conditions. Being marine certified, the Polk DB521's will surprise you with its versatility and ability for use in many applications. The high-efficiency loudspeaker means less power is necessary for the same quality output. The revamped db Series delivers that perfect Polk Audio performance and durability like never before.

Speaker Features:

  • 5-1/4" 2-way Speakers (Marine Certified)
  • Power Handling:
    • Peak: 275 watts per pair / 135 watts each
    • RMS: 90 watts per pair / 45 watts each
  • Impedance: 4 ohms
  • Dynamic Balance polymer/mica composite mineral filled cone is stiff yet lightweight for big sound and little distortion
  • 19mm liquid-cooled silk/polymer composite dome tweeter with neodymium magnet for clear and detailed highs
  • Low-mass 2-Layer 25mm Kapton voice coil former is lightweight for high sound output
  • Multi-hole mounting pattern and shallow depth for easy drop-in installations in most cars
  • ABS Grilles, computer optimized and based on exclusive MOMO designs
  • Durable butyl rubber surround won’t fall apart under the stress of extreme temperatures, sunlight or time
  • Pole Plate Heat Sink promotes better heat dissipation for superior power handling and reliability
  • Acoustically inert stamped steel basket
  • Flat Spider for faster, longer excursion linear motion
  • Flexible woven tinsel leads sewn directly into Spider for greater reliability
  • Frequency Response: 60-22,000 Hz
  • 1-year SonicElectronix.com warranty

Priced Per Pair

Specifications & Details


Speaker Specifications
Speaker Size
5-1/4"
Design
2-way Coaxial
Tweeter Design
Dome
Tweeter Composition
Silk
Woofer Composition
Polymer/Mica Composite
Woofer Surround
Butyl Rubber
Peak Power Handling
135 watts
RMS Power Handling
45 watts
Sensitivity
93 dB
Frequency Response
60 - 22000 Hz
Impedance (Per Voice Coil)
4 ohms
Shallow Mount Installation
Yes
Top-Mount Depth (Mounting Depth)
2-5/16"
Bottom-Mount Depth
2-7/16"
Cutout Dimensions
4-11/16 x 4-11/16 
General specifications
Speaker Grilles
Yes
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

db521-OB

Weight:

4.50lbs

Internal SKU:

LS-db521-OB

Internal Product ID:

72359

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