Christmas cut off: As the cut-off date has passed, Christmas delivery may not be guaranteed. Please select Express shipping for the best chance of delivery before Christmas.
Our team will be on holiday from Dec 22nd to Jan 15th. Please be assured that your order will be dispatched, and any inquiries will be promptly addressed upon our return. We appreciate your understanding and patience during this period.

Christmas cut off: As the cut-off date has passed, Christmas delivery may not be guaranteed. Please select Express shipping for the best chance of delivery before Christmas.

Our team will be on holiday from Dec 22nd to Jan 15th. Please be assured that your order will be dispatched, and any inquiries will be promptly addressed upon our return. We appreciate your understanding and patience during this period.

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Polk Audio DB521 5-1/4" Car/Marine Speakers

UPC: 747192112769 SKU: DB521
Polk Audio DB521 5-1/4" Car/Marine SpeakersPolk Audio DB521 5-1/4" Car/Marine Speakers
$199
$199$124.85
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  • Standard to Metro (4-10 biz days)
  • Express to Metro (1-4 biz days)
  • Standard to Non-metro (10-20 biz days)
  • Express to Non-metro (2-6 biz days)
  • Pickup (Same or next biz day)
  • Longer ETA applies to NT, WA, NZ & US locations.
  • The above time frames are estimates only. The actual delivery time is dependent on the shipping location, shipper's processing capacity and other unforeseeable factors i.e. natural disasters, accidents etc. We cannot be held responsible for any courier-related delivery delays.
This product is discontinued
  • Availability:Out of Stock
  • Model: Polk Audio DB521
 Sold Out 
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5-1/4" db Series 2-Way Speakers


  • Power Handling:
    • Peak: 135 watts
    • RMS: 45 watts
  • Certified for marine use
  • 1-5-1/4" (13.34cm) Polymer/Mica Composite cone with rubber surround
  • 1-3/4" (1.91cm) Liquid-cooled Silk Dome Tweeter
  • Low-mass 2-Layer 25mm Kapton voice coil
  • ABS wheel-design grilles
  • Durable butyl rubber surround
  • Acoustically inert stamped steel basket
  • Flexible woven tinsel leads
  • Frequency response: 60-22,000 Hz
  • Sensitivity: 93 dB
  • Top-mount depth: 2-5/16"

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