JL Audio M7 12in Subwoofer with Titanium Sport Grille

JL Audio M7 12in Subwoofer with Titanium Sport Grille

93673

Model: M7-12IB-S-GmTi-4

M7 12-inch Marine Subwoofer for Infinite-Baffle Use (600 W, 4 ohms) - Gray Metallic Trim Ring, Titanium Sport Grille

Engineered as the reference standard for marine subwoofer performance, the M7-12IB is capable of producing staggering amounts of jaw-dropping bass in infinite-baffle applications.

Built to withstand real-world marine duty, this M7-12IB 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.

M7-12IB 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.

USA Limited Warranty: Two (2) years from the original date of purchase

Specifications

General Specifications

Continuous Power Handling (RMS)
600 W

Nominal Impedance (Znom)
4 ohms

Physical Specifications

Nominal Diameter
12.00 in / 300 mm

Overall Diameter
14.00 in / 356 mm

Bolt Hole Circle Diameter
12.813 in / 325 mm

Frontal Grilles Protrusion
1.48 in / 38 mm

Mounting Hole Diameter
12.0625 in / 306 mm

Mounting Depth
7.94 in / 202 mm

Driver Displacement
0.148 cu ft / 4.19 L

Net Weight
25.35 lb / 11.5 kg

Parameters

Free Air Resonance (Fs) 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

Reference Efficiency (no)
0.28%

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 ohms

* 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