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Polk Audio UMS108B Ultramarine 10.8" Marine Subwoofer with RGB LED Lighting Black

Manufacturer

Polk Audio

<h3>Polk Audio: Five Decades of Audio Engineering Excellence</h3> <p>Founded in 1972 by Matthew Polk, George Klopfer, and Sandy Gross, Polk Audio has established itself as one of the most respected names in audio engineering. The American manufacturer is best known for its home and automobile speakers, delivering exceptional sound quality that resonates with enthusiasts and casual listeners alike. What began in a Baltimore house has evolved into a global audio powerhouse with over 50 years as a trusted name in high-performance audio.</p> <h3>Engineering Innovation and Patented Technologies</h3> <p>Polk Audio's reputation is built on a foundation of innovative acoustic engineering. The company pioneered the Stereo Dimensional Array (SDA) technology, which reduces speaker crosstalk to expand the stereo image beyond traditional boundaries. This patented approach creates a more immersive listening environment by ensuring cleaner channel separation. Their focus on excellent sound, fresh and attractive design, and premium craftsmanship is reflected in their extensive home and car audio lineup, making them a versatile choice for audio enthusiasts across multiple platforms.</p> <h3>Polk Audio for Your Vehicle</h3> <p>Polk entered the world of automotive audio in 1999, bringing their decades of acoustic expertise to the car audio market. Whether you're upgrading your factory sound system with premium <a href="/11551-polk-audio-polk-stereos-200788">Polk stereos</a> or enhancing your setup with quality <a href="/11551-polk-audio-electronics-parts-accessories-200363">electronics parts and accessories</a>, Polk delivers the clarity, power, and reliability that drivers demand. Their automotive products feature the same engineering principles that made them famous in home audio: clean frequency response, durable construction, and impressive sound staging.</p> <h3>Value-Driven Performance Philosophy</h3> <p>What sets Polk Audio apart is their commitment to accessible high-fidelity sound. While many audio companies chase premium price points, Polk has maintained a philosophy of delivering professional-grade performance at attainable prices. Today, Polk continues to delight its customers with value-packed solutions, ensuring that exceptional audio quality isn't reserved only for audiophiles with unlimited budgets. This approach has earned them a loyal following among car enthusiasts who want concert-quality sound without breaking the bank.</p> <h3>Built to Last</h3> <p>Polk Audio products are engineered for longevity. Their automotive speakers and electronics feature robust materials designed to withstand the unique challenges of vehicle environments—temperature fluctuations, vibration, and constant use. Many Polk owners report decades of reliable performance from their systems, a testament to the brand's commitment to build quality. When you invest in Polk Audio for your vehicle, you're choosing components backed by rigorous testing and a heritage of acoustic excellence that spans more than half a century.</p>

Part Number

UMS108B
05/31/2036 8:37 PM
Sale Price

$274.03

In Stock (8)

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Product Details

The Polk Audio UMS108B Ultramarine is a premium 10.8-inch marine subwoofer engineered to deliver powerful, deep bass in the harshest marine environments. Built to withstand the challenges of life on the water, this subwoofer combines robust construction with impressive audio performance and eye-catching RGB LED lighting.

Marine-Grade Construction:

  • Mica-reinforced polypropylene cone for durability and performance
  • Cast aluminum basket provides structural rigidity and corrosion resistance
  • ASTM B117 salt fog and ASTM D4329 UV exposure tested to meet marine industry standards
  • Waterproof and UV/corrosion resistant design for long-lasting reliability

Power and Performance:

  • 350 watts RMS / 700 watts maximum power handling
  • 4-ohm impedance for efficient power delivery
  • Air-suspension design allows installation in any panel without requiring an enclosure
  • Delivers clean, hard-hitting bass even under challenging marine conditions

RGB LED Lighting:

  • Multi-color LEDs mounted in the fixed spoke-style grille create a stunning glow on the woofer cone
  • Compatible with XKGlow Bluetooth controller and XKChrome smartphone app for custom lighting displays
  • Can be wired directly to 12-volt power supply for manual control
  • Multiple color options including red, green, blue, yellow, pink, aqua, and white

Installation Specifications:

  • Cutout diameter: 8.8 inches
  • Mounting depth: 5.71 inches
  • Includes grille, snap-on trim rings, grille covers, mounting hardware, and installation manual

The UMS108B in black finish combines Polk Audio's decades of speaker engineering expertise with purpose-built marine features, making it the ideal choice for boaters who demand exceptional sound quality without compromising on durability.

Good price, Quick turn around

Everything was smooth and easy

100% perfect all around, i will purchase from them again !!

Order was accurate and shipping was on time.

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