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Polk Ultramarine 6.6″ Speakers – Black

Categories: , SKU: 74608


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Ultramarine 6.6″ Speakers – Black

Polk’s Ultramarine speakers are designed to produce maximum sound in marine applications.  Featuring “Air Suspension” technology and high-temperature voice coils, the Ultramarine family of speakers will crank up to 150 watts.

These powerful 6.6″ marine speakers have rugged, removable sport grilles that stand up to sunlight and moisture.  Also included is LED lighting built into the cone of the speaker. 

Underneath, you’ll find UV-treated silver polypropylene cones, durable surrounds, and cast aluminum baskets.  


  • Air Suspension Design
  • Cast Aluminum Basket
  • High Temp Voice coil
  • Snap On Grille Installation Option

Technical Specifications:

  • 1″ Titanium dome tweeter
  • Sensitivity – 87.5dB
  • Max Power – 150W
  • 75 Watts RMS
  • Cut-out Dimensions – 5-1/16″
  • Mounting Depth – 2-15/16″

In the Box:

  • Two (2) – 2 way speakers
  • Two (2) Trim rings
  • Mounting hardware
  • Installation manual

∗Sold in pairs

WarningWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to

Additional information

Weight 3.969 kg
Dimensions 16 × 11 × 11 in