JL Audio M3 10in Marine Subwoofer Gray Sport Grille with RGB LED 300 you have visibility over 3⁄4

you have visibility over 3⁄4 of a nautical mile to light the way to your destination

making it easier to quickly identify subtle changes in bottom composition and structure

The supplied mounting bracket holds the SM-3 secure in the roughest of conditions but it is still readily accessible when needed in an emergency

which does not depend on a battery

autopilots

JL Audio M3 10in Marine Subwoofer Gray Sport Grille with RGB LED 300 you have visibility over 3⁄4JL Audio M3 10 inch (250 mm) Marine Subwoofer Driver, Gray Metallic Sport Grille with RGB LED Lighting, 4 ohms Model: M3 10IB S Gm i 4 With appropriate system setup, the addition of a subwoofer allows your smaller main speakers to be free of the burden of reproducing low frequencies. This allows your whole system to play louder and to sound cleaner at all listening levels. Purpose engineered and built for real marine duty, the M3 infinite baffle