JL Audio 8-inch M6 Marine Infinite Baffle Subwoofer Gloss White, Gunmetal Sport Grille

Model:  M6-8IB-S-GwGw-4

 

FULL 2-YEAR JL WARRANTY BEGINNING JULY 2025. 

**Serial numbers are recorded and photographed for every customer order of JL Audio products.  

Any product returned for ANY REASON must be returned in its original and serial matching box / packaging.** 

 

This product comes in a standard brown JL Audio box (not typical retail packaging). These woofers were manufactured for OEM installations (during boat manufacturing process), which means you can get a super rare color scheme that was never available retail.

M6 Loudspeakers fulfill JL Audio’s commitment to raise the bar with each product generation. The JL Audio engineering team has completely reinvented the premium marine loudspeaker, with major improvements in performance, precision and durability. Offered in multiple sizes and cosmetic options, most models are also available with a brilliant, new lighting technology.

Advanced Subwoofer Technologies

Offered in 8-inch and 10-inch diameters, M6 subwoofers continue JL Audio’s tradition of building low-frequency drivers that impress, not only with their output capability, but also with the quality and balance of their sound. FEA-optimized motor and suspension designs are optimized for infinite-baffle installation (IB models), or for installation into small sealed enclosures (W models). Choose the right one for your application and it will reward you with powerful, low-distortion sub-bass that takes your marine audio experience to a higher level.

Physical Specifications

Nominal Diameter8 in / 200 mm
Outer Diameter8.8 in / 224 mm
Bolt Hole Circle7.97 in / 202 mm
Frontal Grille Protrusion1.37-Inches for Classic Grille, 1.45-Inches for Sport Grille
Mounting Hole Diameter7.375 in / 187 mm
Mounting Depth5.00 in / 127 mm
Net Weight8.7 lbs / 3.9 kg
Driver Displacement0.033 ft^3 / 0.93 liters

 

Subwoofer 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 ft3 / 15.29 litres
One-way, Linear Excursion (Xmax)0.53 in / 13.5 mm
Efficiency (1W/1m)86.8 dB SPL
Effective Piston Area (Sd)35.15 in² / 0.0227 m²
DC Resistance (Re)2.993 ohm
Nominal Impedance4 Ohm
Infinite Baffle UseYes
Enclosure UseYes (Sealed & Ported)
Power Handling (continuous)200W