JL Audio
M6-8IB-S-GmTi-4
10" Marine Subwoofer (Gunmetal Trim Ring, Titanium Sport Grille)

$359.99
JL Audio M6-8IB-S-GmTi-4
JL Audio M6-8IB-S-GmTi-4 JL Audio M6-8IB-S-GmTi-4 JL Audio M6-8IB-S-GmTi-4 JL Audio M6-8IB-S-GmTi-4 JL Audio M6-8IB-S-GmTi-4 JL Audio M6-8IB-S-GmTi-4 JL Audio M6-8IB-S-GmTi-4 JL Audio M6-8IB-S-GmTi-4

Overview

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 M6 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 M6-8IB is best used with amplifier power in the 50W - 200W range and is optimized to operate with 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.

Production of all M6 loudspeakers takes place in JL Audio’s Miramar, Florida factory, using global components and materials.

DMA Optimized Motor

JL Audio's proprietary Dynamic Motor Analysis system is a powerful suite of FEA-based modeling systems, first developed by JL Audio in 1997 and refined over the years to scientifically address the issue of speaker motor linearity. This leads to vastly reduced distortion and faithfully reproduced transients... or put simply: tight, clean, articulate bass.

Marine Materials / Testing

The design of marine products requires extensive materials testing to achieve reliability and longevity.

Building serious marine products requires a real commitment to environmental testing and materials specification. To this end, JL Audio has invested in Ultraviolet testing chambers (to simulate years of sun exposure) and Salt Fog chambers (to simulate years of exposure to salt-water environments). This testing is critical to building products that will not only sound great in your boat, but will also sound great for many, many years.

Materials Used

  • Injection-molded mica-filled polypropylene cone bodies with synthetic rubber surrounds, specifically formulated with UV inhibitors for marine duty.
  • Marine-grade, synthetic fiber spiders with progressive roll designs to withstand high humidity.
  • Specifically engineered polymer baskets are corrosion and UV-resistant and encapsulate the woofer's motor system to prevent corrosion.
  • Gold-plated, marine-grade brass connection terminals
  • Marine-grade stainless steel mounting hardware is included.

Built-In USA with Global Components

At a time when most audio products are built overseas, JL Audio’s commitment to in-house loudspeaker production continues to grow. To pull this off in a competitive world market, our production engineering team has created one of the world’s most advanced loudspeaker assembly facilities and established a global network of quality component suppliers who build to our specifications. This, combined with our commitment to state-of-the-art assembly technology, allows our skilled workforce to efficiently build JL Audio products to extremely high quality standards, right here in the U.S.A.

Specifications

Subwoofer Size
8" (200 mm)
Power
200W RMS
Nominal Impedance
Color
Gray Metallic
Grille
Titanum Sport

Parameters

Free Air Resonance (Fs)
54.92 Hz
Electrical “Q” (Qes)
0.852
Mechanical “Q” (Qms)
10.314
Total Speaker “Q” (Qts)
0.787
Equivalent Compliance (Vas)
0.54 cu ft / 15.29 L
One-Way Linear Excursion (Xmax)*
0.53 in / 14 mm
Reference Efficiency (no)
0.28%
Efficiency (1 W / 1 m)**
86.7 dB SPL
Effective Piston Area (Sd)
35.15 sq in / 0.0227 sq m
DC Resistance (Re)
2.993 Ω

* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied.

** Efficiency (1 W / 1 m) is not an accurate indicator of a subwoofer’s output capability and should not be used as a comparison to other subwoofers to determine which one is “louder”.

Sealed Enclosure Specifications

Wall Thickness
0.75 in / 19 mm
Front Baffle Thickness
0.75 in / 19 mm
Volume (net int.)
2.00 cu ft / 56.6 L
External Width (W)
16 in / 406 mm
External Height (H)
16 in / 406 mm
External Depth (D)
18.25 in / 464 mm
F3
51.78 Hz
Fc
61.89 Hz
Qtc
0.8869

Enclosure Notes

*The enclosure recommendations listed above are external dimensions which assume the use of 0.75 in (19 mm) thick material. If you are using 0.625 in (16 mm) thick material, subtract 0.25 in (6.5 mm) from each dimension. Do not use any material with a thickness of less than 0.625 in (16 mm) as this may compromise the rigidity of the enclosure.

*All enclosure volumes listed above are net internal volumes! Driver displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions above have already taken this into account.

*When using multiple subwoofers in a common enclosure you will need to recalculate the enclosure and port dimensions. For assistance please contact your authorized JL Audio dealer or JL Audio Technical Support.

*We recommend the use of this speaker in a bi-amplified system using high-quality satellite speakers and a high-quality amplifier. We do not recommend the use of this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance.

* All specifications are subject to change without notice.

Safety Notice

Prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. This high-performance speaker can exceed this level. Please exercise restraint in its operation in order to preserve your ability to enjoy its fidelity.

When installing a subwoofer in your vehicle, it is extremely important to secure the enclosure firmly. We recommend bolting the enclosure through the metal of the floorpan or the frame of the vehicle with large diameter washers for reinforcement. If an enclosure is not firmly attached, it can become a projectile in a collision. This is particularly important in a hatchback, station wagon, sports utility vehicle, or van.

Ported Enclosure Specifications

Wall Thickness
0.75 in / 19 mm
Front Baffle Thickness
0.75 in / 19 mm
Volume (net int.)
1.50 cu ft / 42.5 L
External Width (W)
16 in / 406 mm
External Height (H)
16 in / 406 mm
External Depth (D)
15.125 in / 384 mm
Internal Port Diameter (ID)
4 in / 102 mm
Port Length (L)
13.50 in / 343 mm
Tuning Frequency (Fb)
37 Hz
F3
31.26 Hz

Enclosure Notes

*The enclosure recommendations listed above are external dimensions which assume the use of 0.75 in (19 mm) thick material. If you are using 0.625 in (16 mm) thick material, subtract 0.25 in (6.5 mm) from each dimension. Do not use any material with a thickness of less than 0.625 in (16 mm) as this may compromise the rigidity of the enclosure.

*All enclosure volumes listed above are net internal volumes! Driver displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions above have already taken this into account.

*When using multiple subwoofers in a common enclosure you will need to recalculate the enclosure and port dimensions. For assistance please contact your authorized JL Audio dealer or JL Audio Technical Support.

*We recommend the use of this speaker in a bi-amplified system using high-quality satellite speakers and a high-quality amplifier. We do not recommend the use of this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance.

* All specifications are subject to change without notice.

Safety Notice

Prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. This high-performance speaker can exceed this level. Please exercise restraint in its operation in order to preserve your ability to enjoy its fidelity.

When installing a subwoofer in your vehicle, it is extremely important to secure the enclosure firmly. We recommend bolting the enclosure through the metal of the floorpan or the frame of the vehicle with large diameter washers for reinforcement. If an enclosure is not firmly attached, it can become a projectile in a collision. This is particularly important in a hatchback, station wagon, sports utility vehicle, or van.

Dimensions

Nominal Diameter
8.0 in / 200 mm
Overall Diameter (A)
8.80 in / 224 mm
Bolt Hole Circle Diameter (B)
7.97 in / 202 mm
Frontal Grilles Protrusion* (C)
1.45 in / 37 mm
Mounting Hole Diameter (D)
7.375 in / 187 mm
Mounting Depth (E)
5.00 in / 127 mm
Driver Displacement
0.033 cu ft / 0.93 L
Net Weight
8.70 lb / 3.90 kg

*Frontal grille protrusion measured from mounting surface.

More Information
Brand JL Audio
Color Gray Metallic
RMS Power 200W RMS
Subwoofer Size 8"
Nominal Impedance 4 Ω