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Polk Audio Db521 Speaker - 45 W Rms - 2-way - 4 Ohm - 5.25" (db521) 

Over 50 in stock (as of 04/20/2018 06:10 PM)

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Polk Audio Db521 Speaker - 45 W Rms - 2-way - 4 Ohm - 5.25" (db521)
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Added to our catalog within last 30 days
Model: DB521
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  • Pair of marine certified speakers perfect for use in boats of all types
  • Equipped with a 0.75-inch liquid-cooled silk-polymer composite dome tweeter
  • Maximum input power: 135 watts
  • Equipped with a dynamic balance polymer/mica composite mineral-filled cone for a big sound
  • Durable butyl rubber surround stands up to the stress of extreme temperatures, sunlight and time
  • Features

    • Low-mass 2-Layer 25mm Kapton Voice Coil former
    • Muscular ABS Grilles
    • Pole Plate Heat Sink
    • Flat Spider
    • Flexible Woven Leads


    General Information
    ManufacturerSound United
    Manufacturer Part Numberdb521
    Manufacturer Website Addresshttp://www.soundunited.com
    Brand NamePolk
    Product Seriesdb
    Product Modeldb521
    Product Namedb521 Speaker
    Marketing Information

    Our new 2007 db Series is better than ever with superior looks and even better sound. And we've done all that at prices that make high performance affordable to everyone! The db Series works well in OEM factory systems, as well as with high-powered after market head units and component power amps. The db Series delivers classic Polk Audio performance and durability like never before.

    Product TypeSpeaker
    Technical Information
    Crossover Type2-way
    Crossover SupportedYes
    RMS Output Power45 W
    PMPO Output Power135 W
    Minimum Frequency Response60 Hz
    Maximum Frequency Response22 kHz
    Impedance4 Ohm
    Sensitivity93 dB
    Physical Characteristics
    Speaker Diameter5.25"
    Cutout Diameter4.69"
    ProductTitlePolk db521 Speaker - 45 W RMS - 135 W PMPO - 2-way - 4 Ohm - 93 dB Sensitivity - 5.25"

    Warranty Information

    Limited Warranty1 Year
    Beach Audio Warranty

    This product was added to our catalog on Friday, April 20, 2018.


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