





JL Audio M6-8IB-S-GmTi-4
M6 Series 8" Marine Subwoofer (Gunmetal Sport Grille and Titanium Grille Insert)
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Elevate Your Marine Audio Experience with the JL Audio M6-8IB-S-GmTi-4 Subwoofer – Unmatched Bass Performance
Upgrade your boat's sound system with the JL Audio M6-8IB-S-GmTi-4, an 8-inch marine subwoofer engineered to deliver deep, distortion-free bass in even the most demanding open-air marine environments. Designed with premium materials and True-Marine™ durability, this subwoofer brings power and precision to your music—perfect for cruising, fishing, or entertaining on the water.
Key Features
- High-Performance 8-Inch Subwoofer: Produces rich, impactful bass tailored for marine audio setups.
- Sport Grille Design: Features a modern gunmetal/titanium finish for a sleek and stylish marine aesthetic.
- True-Marine™ Engineering: Built to withstand UV rays, saltwater exposure, and extreme marine weather conditions.
- Infinite-Baffle Operation: Designed for optimal performance without a dedicated enclosure, ideal for open installations.
- Long-Excursion Design: Enables powerful low-frequency output with minimal distortion.
- Durable Construction: Features injection-molded mica-filled polypropylene cone and synthetic rubber surround for long-lasting reliability.
Specifications
Specification | Details |
---|---|
Speaker Size | 8 inches |
Power Handling | 200 watts RMS / 400 watts peak |
Impedance | 4 ohms |
Frequency Response | 30 Hz – 250 Hz |
Sensitivity | 84.2 dB @ 1W/1m |
Mounting Depth | 5.12 inches |
Cutout Diameter | 7.375 inches |
Grille Style | Sport Grille (Gunmetal/Titanium) |
What’s In the Box
- JL Audio M6-8IB-S-GmTi-4 8" Marine Subwoofer
- Sport Grille (Gunmetal/Titanium, pre-installed)
- Mounting Hardware
- Installation Guide
Frequently Asked Questions
Q: Is this subwoofer weather-resistant?
A: Yes, the M6-8IB-S-GmTi-4 features JL Audio’s True-Marine™ engineering, making it resistant to UV rays, saltwater, and extreme weather.
Q: Does it require a dedicated enclosure?
A: No, it’s designed for infinite-baffle installations, allowing optimal performance without an enclosure.
Q: What kind of amplifier should I use?
A: JL Audio recommends an amplifier that can deliver 200 watts RMS at 4 ohms for ideal performance.
Q: Can I use it in non-marine systems?
A: While intended for marine use, the subwoofer can be integrated into other systems with proper impedance and power handling considerations.
Q: Is the grille included and pre-installed?
A: Yes, the Sport Grille in gunmetal/titanium finish comes pre-installed for easy setup and immediate use.
Experience Deep, Marine-Grade Bass with the JL Audio M6-8IB-S-GmTi-4
Upgrade your vessel’s sound system with premium bass performance and unmatched durability. Order the JL Audio M6-8IB-S-GmTi-4 today and enjoy rich, powerful sound wherever your adventures take you.

FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.