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JL Audio FS108-W5-SG-TB

8" marine subwoofer in a sealed fiberglass enclosure (Black w/ "Sport" grille)

Item # 13690018

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Overview

Our take on the JL Audio FS108-W5-SG-TB

Want more boom for your boat? JL Audio's FS108-W5 marine sub brings some serious bass with an 8" M8W5 marine speaker mounted in a waterproof fiberglass enclosure. The enclosure's smooth gel coat finish will stand up to years of weather and salt water, while the 8" driver is made to withstand the rigors of sea duty.

Bring on the bass

Want more boom for your boat? JL Audio's FS108-W5 marine sub brings some serious bass with an 8" M8W5 marine speaker mounted in a waterproof fiberglass enclosure. The enclosure's smooth gel coat finish will stand up to years of weather and salt water, while the 8" driver is made to withstand the rigors of sea duty.

Handles up to 200 watts RMS

JL Audio designed the sealed enclosure to deliver powerful, accurate bass in an open-air installation, so you'll get all the rumble you're looking for and more. This rugged sub can handle up to 200 watts RMS, which should be enough to keep you happy. And with the durability that's engineered into this sub, you'll be happy for a long time.

Important Installation Note: The enclosure is not drilled for speaker cable, giving the installer more flexibility in locating the sub. The enclosure must be drilled, wired, and sealed as part of the installation process.

Product Highlights:

  • waterproof fiberglass sealed enclosure with 8" subwoofer
  • injection-molded mica-filled polypropylene woofer with synthetic rubber surround
  • Centrex polymer basket and grille, with stainless steel back plate
  • marine-grade synthetic fiber spider
  • impedance: 4 ohms
  • power range: 75-200 watts RMS
  • dimensions: 15"W x 14-7/16"H x 10-1/2"D
  • warranty: 2 years
  • Our 60-day money-back guarantee

What's in the Box:

  • Subwoofer enclosure w/installed 8" driver
  • Three 1-1/2" screws w/washers
  • Installation instructions
  • Warranty information
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Features

Overview: The JL Audio FS105-W5-SG-TB is an enclosed subwoofer system designed for installation in a boat. It is equipped with an M8W5-SG-TB 8" subwoofer driver installed in a sturdy, all-fiberglass enclosure with a beautiful, gloss-black gel-coat finish. The enclosure is precisely tuned to provide the best bass output for an open-air boat installation.

Note: The enclosure is not drilled for speaker wire, and has no external terminals. It is up to the installer to determine the best location on the enclosure to drill an exit hole for the speaker wire, based on the location chosen for mounting the subwoofer.

Marine Tested: JL Audio's marine subwoofers go through ultraviolet testing chambers (to simulate years of sun exposure) and salt fog chambers (to simulate years of exposure to salt-water environments and are built to withstand the rigors of marine use.

Woofer: The M8W5-SG-TB subwoofer features an injection-molded, mica-filled polypropylene cone woofer with a synthetic rubber surround specifically formulated for marine use. The woofer uses a vented motor design with a marine-grade stainless steel rear diffuser plate and a marine-grade synthetic fiber spider with a progressive roll design. It has marine-grade brass connection terminals (male quick slides, .250"/.1875"). Marine-grade, stainless-steel mounting screws and washers are included.

Note: Three screws and washers are installed in the enclosure/woofer/grille assembly, while the other three are included in a bag. Removal of the woofer from the enclosure is required to install the enclosure.

DMA (Dynamic Motor Analysis): JL Audio's proprietary Dynamic Motor Analysis (DMA) technology results in ultra-linear motor force over a long range of excursion and a wide range of power inputs to reduce distortion and improve sound quality.

Polymer Basket And Grille: The Centrex, UV-resistant polymer basket and grille are corrosion and UV-resistant which help protect the woofer and encapsulates the motor assembly to prevent corrosion. The titanium-colored Sport-style grille is installed on the woofer.

Installation Notes: The enclosure should be securely mounted to the location you have chosen. It is recommended that at least 2 mounting bolts are used to secure the enclosure--three or more for extra strength and stability. This involves drilling holes in the base and the mounting surface for the mounting hardware. Stainless steel hardware (hex head bolts, fender washers, lock washers, and hex nuts) should be used to resist corrosion. An additional hole needs to be drilled in the enclosure for entry of the speaker wire. Silicone caulk should be used to seal the enclosure and protect the wire from abrasion.

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