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Add more bass to your boat with quality and certified marine speakers. Browse now to view a large selection of marine subs with variety of sizes and price-points!
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Polk Audio Marine Subwoofers Round Subwoofers

360W Max 8" db Series Single 4 ohm Marine Certified Car Subwoofer

• 360W Peak
• 180W RMS
• Polypropylene Cone Woofer
• Santoprene Rubber Surround
• Marine Certified
• Triple Vented 4-layer Kapton single 4 Ohms Voice Coil

$50.97

OUT OF STOCK

270W 10" db Series Dual 4 ohm Marine Certified Car Subwoofer

• 540W Peak
• 270W RMS
• Dual 4 Ohm
• Polypropylene Cone
• Santoprene Surround
• Dual Voice Coil
• Fire-retardant Flat NOMEX Spider

$61.99

OUT OF STOCK

250W 8" Mobile Monitor Series Dual 4 ohm Marine Certified Car Subwoofer

• 500W Peak
• 250W RMS
• Polymer cone woofer
• Butyl rubber surround
• Advanced carbon composite basket will not flex during peaks

$109.95

OUT OF STOCK

425W 12" Mobile Monitor Series Dual 4 ohm Marine Certified Car Subwoofer

• 850W Peak
• 425W RMS
• Polymer woofer cone
• Butyl rubber surround
• Carbon Composite Basket
• Marine Certified
• Klippel Distortion Analyzer

$164.99

OUT OF STOCK

Related Categories

Polk Audio Subwoofer Installation & Accessories
Get the most sound out of your subwoofer with these installation parts designed to make your subwoofer instal easier and sound better. Within this category, you will find box terminals, polyfil, subwoofer boxes, sound damping material, subwoofer grilles, speaker wire, connecters, and many more accessories. For all your installation needs, check out our expansive selection of car subwoofer installation parts.