Bring the thunder. The Signature Series 3i subwoofers deliver the drama with the premium low frequencies to make your listening experience deep and powerful. Material enhancements feature marinized connectors and a redesigned grille, simplifying installation and providing superior protection from harsh conditions. Polypropylene cone technology provides exceptional self-dampening, high-fidelity and bass reproduction to give you the most premium onboard listening experience imaginable. Select sports style models also have CRGBW LED lighting to set the mood on your boat. Combining function and style, these subwoofers are made for life on the water, just like you.