SKU: 20742293549

Polk Ultramarine 8.8" Speakers - Smoke

Sale price$170.77 Regular price$189.74
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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Description

Polk Ultramarine 8.8" Speakers - SmokeUltramarine 8. 8" Speakers Smoke 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 250 watts. These powerful 8. 8" 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,

Ultramarine 8.8" Speakers - Smoke

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 250 watts.

These powerful 8.8" 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 - 89.4dB
  • Max Power - 250W
  • 125 Watts RMS
  • Cut-out Dimensions - 7-3/8"
  • Mounting Depth - 4-1/6"

In the Box:

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

∗Sold in pairs

WARNING: 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.


Manufacturer Part Numbers: UMS88SR
Brochure Literature (PDF)
GRP:WRO
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20742293549

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4.7 ★★★★★
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Kaili
Charlottesville, US
★★★★★ 5
Perfect for a coffee bar
Size: 16inch, Color: 1 Set, Size: 16inch, Color: 1 Set
Cute cofffee bar shelf! Perfect size and sturdy
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Reviewed in the United States on March 15, 2026
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Verified Purchase
Tim & Adrienne
Bozeman, US
★★★★★ 5
Great shelves with basket storage
Size: 16inch, Color: 2 Sets, Size: 16inch, Color: 2 Sets
I was looking for shelves that had storage and these have by far exceeded my expectations. I love them! They came well packaged with everything needed to hang them up. It took us less than 5 mins to hang them. They are sturdy and stable. I definitely would recommend this product. We have them hung on the wall above our coffee bar.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 29, 2025
S
Verified Purchase
Stefanie
Pawtucket, US
★★★★★ 5
These shelves are awesome!!!
Size: 16inch, Color: 2 Sets, Size: 16inch, Color: 2 Sets
I absolutely love these shelves! I don’t have a single complaint. They look fantastic, well made. If debating on buying these just do it! You won’t be disappointed.
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Reviewed in the United States on March 16, 2026
W
Verified Purchase
wes
San Leandro, US
★★★★★ 5
Simple installation
Size: 16inch, Color: 2 Sets
Super easy to put together and came just as it said it would and the directions were very thorough and simple!
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Reviewed in the United States on February 1, 2026
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Paula Ricketts
Charlottesville, US
★★★★★ 5
Super cute!
Size: 16inch, Color: 2 Sets
Very nice for our coffee nook and sturdy too!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2026

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