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The Ultimate Polk Ultramarine 7.7" Speakers - Black [ums77br] All Sizes Available [s4UL5WNG]

$51.99 $166.99 -69%

Ultramarine 7.7" Speakers - BlackPolk'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 20

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The Ultimate Polk Ultramarine 7.7" Speakers - Black [ums77br] All Sizes Available [s4UL5WNG]

Ultramarine 7.7" 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 200 watts.

These powerful 7.7" 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.  

Features:

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

Technical Specifications:

  • 1" Titanium dome tweeter
  • Sensitivity - 90.2dB
  • Max Power - 200W
  • 100 Watts RMS
  • Cut-out Dimensions - 6-1/4"
  • Mounting Depth - 3-1/6"

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 P65Warnings.ca.gov.

Specifications:

  • Watts RMS: 100w
  • Watts Max: 200w
  • Size: 7.7"
  • QTY: Pair
  • Mounting Style: Flush
  • Cutout Size: 6.25"
  • Box Dimensions: 11"H x 11"W x 16"L WT: 14.1 lbs
  • UPC: 681787023095

Brochure (pdf)

What Our Customers Say

February 5, 2026

Absolutely no complaints!

It’s a very sleek and professional-looking item.

- ProLook.

February 5, 2026

Absolutely no complaints!

The product feels very high-end.

- Zoey Perry.

February 5, 2026

Absolutely no complaints!

The product is a solid performer with great features.

- Wes Brown.

Write a Review

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