JL Audio M6-8IB-L-GwSw-4 8" 4Ω Marine Subwoofer 200W RMS 010-03915-00 (93915)

JL Audio M6-8IB-L-GwSw-4 is an 8" marine subwoofer built for free-air, infinite-baffle, sealed, or ported installs where deep, controlled bass is required. Designed with rugged marine-grade materials, this M6 series driver handles up to 200 watts RMS and is optimally voiced for real-world marine environments with UV-resistant grilles and corrosion-resistant hardware. 

The injection-molded mica-filled polypropylene cone and synthetic rubber surround provide bass articulation with low distortion across a wide range of levels, while the polymer basket and marine-grade spider ensure long-term durability. With a nominal 4Ω impedance and sensitivity around 86.8 dB, this sub complements full-range JL marine systems and pairs with dedicated amplifiers for impactful low-frequency extension.

Key Features

• 8" marine subwoofer optimized for infinite-baffle or box installations
• 200 W RMS continuous power handling
• Nominal 4 Ω impedance for wide amp compatibility
• Injection-molded mica-filled polypropylene cone
• Synthetic rubber surround for durability in harsh conditions
• Corrosion-resistant polymer basket and hardware
• Protective white luxe grille included

Technical Specifications

Ideal Applications

• Marine and watersports audio systems with low-frequency requirements
• Infinite-baffle installs where enclosure space is limited
• Sealed or ported box use for deeper bass response
• Paired with dedicated amplifiers for full audio performance

What’s Included

• JL Audio M6-8IB-L-GwSw-4 marine subwoofer
• White luxe protective grille
• Mounting hardware and documentation

Why Buy From MCOR Automotive

• Authorized JL Audio dealer with exact specs
• Marine audio system design and amp matching support
• Application guidance for enclosures and integration
• 20+ years building high-end 12-volt systems