JL Audio M3 Marine Speakers & Subwoofers

Upgrade your sound with the JL Audio M3 Series — high-performance marine speakers, subwoofers, and amplifiers engineered for clear, powerful audio on the water.

Built to withstand the elements, M3 speakers deliver crisp highs, deep bass, and durable UV-resistant construction for long-lasting performance on any boat.

*JL Audio Products also available at Suncoast: M3 Series, M6 Series, M7 Series, Amplifiers and Car Stereo Power Amps, MX Series, Speakers, Subwoofers, and Speaker Mounts and Accessories.

Shop the entire JL Audio collection with confidence at the LOWEST PRICES GUARANTEED, FREE shipping on orders over $99, and support a small business dedicated to your marine adventures.

The stories

behind the products

READ TIME: APPROX 3 MINS

JL Audio Buyer’s Guide. From marine-rated coax speakers and subwoofers to ultra-efficient amplifiers and go-anywhere tower setups, this guide breaks down each JL Audio lineup (M, XD, MX, Stealthbox and more).

Overview | From Car Subs to Boat Towers

Learn the differences between coaxial vs. component marine speakers, and find the perfect waterproof boat speakers to pair with JL’s MediaMaster marine head units

Marine Speakers | M3 vs M6 Guide

From choosing the right size and power to installation tips and mounting fixtures. Find out how JL Audio’s marine-grade tower speakers deliver unbeatable sound on the water.

Tower Guide | Explained: Sizing, Mounting Options & more

Learn how to upgrade your boat’s sound system with affordable JL Audio marine products. Explore top-rated MX amps, M3 subwoofers, and M-Series amplifiers that combine premium sound, durability, and value.

Affordable JL Audio Marine Sound Systems — Speakers, Amps & Subwoofers

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