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JL Audio M12IB6-SG-TB: 12-inch (300 mm) Marine Subwoofer - JL-M12IB6-SG-TB-91619

JL Audio M10IB5-SG-TB: 10-inch (250 mm) Subwoofer

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Our Price: $699.00

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Product Code: JL-M12IB6-SG-TB-91619


JL Audio M12IB6-SG-TB: 12-inch (300 mm) Marine Subwoofer Driver, Titanium Sport Grille, 4 Ω


M-Series 12-inch Marine Subwoofer Driver for Infinite-Baffle Use (600 W, 4 Ω) - Titanium Sport Grille

Engineered as the reference standard for marine subwoofer performance, the M12IB6 is capable of producing staggering amounts of jaw-dropping bass in infinite-baffle applications.

Built to withstand real-world marine duty, this M12IB6 is designed to operate without a dedicated enclosure. It boasts a monstrous 4-inch voice coil and rugged suspension system to deliver outstanding linear excursion for high output and power handling.

The M12IB6 is best used with amplifier power in the 200W – 600W range and is optimized to operate with a large volume of air behind it (at least 3 cu. ft. / 84.95 l).

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

General Specifications

Continuous Power Handling (RMS) 60 W

Nominal Impedance (Znom) 4 Ω

Physical Specifications

Nominal Diameter 12.0 in / 300 mm

Overall Diameter (A) 14 in / 356 mm

Mounting Hole Diameter (B) 12.065 in / 306 mm

Bolt Hole Circle Diameter (C)12.813 in / 325 mm

Motor Outer Diameter (D) 8.84 in / 225 mm

Mounting Depth (E) 8.05 in / 204 mm

Driver Displacement 0.064 cu ft / 1.81 L

Net Weight 23.8 lb / 10.8 kg


Free Air Resonance (Fs) 35.34 Hz

Electrical “Q” (Qes) 0.856

Mechanical “Q” (Qms) 10.389

Total Speaker “Q” (Qts) 0.791

Equivalent Compliance (Vas) 1.99 cu ft / 56.35 L

One-Way Linear Excursion (Xmax)* 0.73 in / 18.5 mm

Efficiency (1 W / 1 m)** 86.7 dB SPL

Effective Piston Area (Sd) 80.54 sq in / 0.052 sq m

DC Resistance (Re) 3.543 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”.

Enclosure Specifications

Infinite Baffle Use Yes (preferred)

Min. Sealed Enclosure Volume 2.0 cu ft / 56.6 L (or larger)

Optimum Sealed Enclosure Volume 3.0 cu ft / 70.8 L

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