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Free Budget Shipping
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10" Subwoofer Ultramarine - Silver
Polk's marine subwoofers have always been known for intelligent design, impressive sound, and weather resistance. The UMS108 sub continues this tradition with solid construction that stands up to the elements.
The UMS108 is made to kick out deep bass under challenging conditions. Its mica-reinforced polypropylene cone handles up to 350 watts RMS, and the stiffness of the cast aluminum basket gives you the clean, hard-hitting performance you expect from Polk. This sub's air-suspension design makes it suitable for installation in any panel of your boat without the need for an enclosure.
Features:
- Air Suspension Design
- Cast Aluminum Basket
- High Temp Voice coil
- Snap On Grille Installation Option
Technical Specifications:
- Sensitivity - 89.2dB
- Max Power - 700W
- 350 Watts RMS
- Cut-out Dimensions - 8.8"
- Mounting Depth - 5.71"
In the Box:
- One (1) Subwoofer
- Grille
- Mounting hardware
- Installation manual
∗Sold as an Individual
![]() | WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov. |
Product images may differ from actual product appearance.
- This item cannot be shipped to PO Boxes.
- This item can be shipped only within the U.S.
- UPC: 681787023040
- Mfr's Part #: UMS108SR


Many items at NothingButSavings.com offer FREE Budget Shipping. Plus, as with many
of our competitors which do offer free shipping, we don't ask you to spend a specified
amount in order to qualify for FREE Budget Shipping.









