U.S. Customers: Orders shipped from Canada may be subject to U.S. import duties, taxes, and/or tariffs as assessed by U.S. Customs and your carrier. These charges are not included in our product prices or shipping rates. You are responsible for any duties/tariffs/fees due on delivery or prior to delivery.
Canadian Based. Customer Focused.

Premium Marine Quality Parts

Polk Audio

Polk Ultramarine 7.7" Speakers - Black

LSN 74611 MPN UMS77BR UPC 681787023095 MFR Polk Audio
Special Order
BC, Warehouse

"Special Order" items will take longer to process and ship then "Express" items.
Typically takes no more then 14 days for delivery.

For next day parts. Visit our express parts catalog Here.
In Stock
$597.69
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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"

What's 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.

Documentation

BrochureDownload PDF

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  • SKU 70185 — MFG# 1140
  • SKU 71661 — MFG# 142625
  • SKU 84153 — MFG# MOFC12GA150SW
  • SKU 84154 — MFG# MOFC16GA150SW
  • SKU 85098 — MFG# 010-12898-00
  • SKU 85100 — MFG# 010-12898-10
  • SKU 85101 — MFG# 010-12898-20
  • SKU 85102 — MFG# 010-12899-00
  • SKU 85103 — MFG# 010-12899-10
  • SKU 85104 — MFG# 010-12899-20
Northern Marine Canada
Proudly Canadian Owned & Operated!
Serving customers across Canada & the USA with marine parts and accessories.
Canadian Head Office:
Kingston, Ontario, Canada
Warehouse Locations:
Toronto, Ontario, Canada
New Jersey, USA
Florida, USA

About Us

Northern Marine is a Canadian supplier of premium marine and RV parts and accessories from top industry brands. We focus on quality, accurate listings, and dependable fulfillment so you can maintain, repair, and outfit your boat or RV with confidence.

Our goal is simple: get you the right parts, shipped fast, with straightforward service you can count on.