JL Audio M8IB5-CG-TB
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Item# 47647 / Condition:  Brand New  On Sale  Review this product

JL Audio M8IB5-CG-TB (91371)

200W 8" M-Series Single 4-ohm Infinite-baffle Marine Subwoofer

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Save 4% | Reg. Price $239.99 In Stock
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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 M-Series infinite-baffle woofers are designed to operate without a dedicated enclosure. Long excursion capability and rugged suspension systems help produce deep, powerful bass response that will transform your boat's audio system.


The M8IB5 is best used with amplifier power in the 50W - 200W range and is optimized to operate with just a large volume of air behind it (at least 1.5 cu. ft. / 42.5 l). If you prefer to use a dedicated enclosure, refer to one of the suggested designs located in the Specifications section for optimum performance.

Like all JL Audio marine speakers, this driver is built to withstand a real saltwater marine environment and deliver years of listening enjoyment.

  • Color: Black

Product Features:

  • Cutout Diameter: 7.375"
  • Color: Titanium Grille w/ Black Frame
  • Proprietary Dynamic Motor Analysis (DMA) technology
  • RMS: 200 watts
  • Minimum Enclosure Volume: 1.50 cu ft / 42.5 L (or larger)
  • Stainless steel mounting hardware included
  • Recommended power range: 50 - 200 watts RMS
  • Marine grade progressive roll synthetic fiber spider
  • Injection-Molded mica-filled polypropylene cone bodies
  • Long linear excursion for enhanced output and reduced distortion
  • Impedance: 4 ohm
  • Synthetic rubber surround specifically formulated with UV inhibitors
  • Plated marine-grade brass connection terminals
  • Specifically engineered Centrex polymer baskets are corrosion & UV-resistant
  • Efficiency: 86.7 dB
  • Xmax: 14 mm
  • Mounting Depth: 5.18"
  • Infinite Baffle Use: Yes
  • Subwoofers are usually sold as a single unit unless otherwise noted.
  • UPC: 699440913713
  • Weight: 10
  • Sku: 91371
  • Authorized Internet Dealer
*Warranty: 2 Years Manufacturer warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 1 year from the original date of purchase with proper return authorization.