JL audio M7-12IB-S-GwGw-4 subwoofer 12”
93671
12-inch (300 mm) Marine Subwoofer Driver, Gloss White Trim Ring, Gloss White Sport Grille, 4 Ω
M7 12-inch Marine Subwoofer for Infinite-Baffle Use (600 W, 4 Ω) - Gloss White Trim Ring, Gloss White 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.
JL audio M7-12IB-S-GwGw-4 subwoofer 12”
93671
General Specifications
| Continuous Power Handling (RMS) |
600 W |
| Nominal Impedance (Znom) |
4 Ω |
Physical Specifications
| Nominal Diameter |
12.00 in / 300 mm |
| Overall Diameter (A) |
14.00 in / 356 mm |
| Bolt Hole Circle Diameter (B) |
12.813 in / 325 mm |
| Frontal Grilles Protrusion* (C) |
1.48 in / 38 mm |
| Mounting Hole Diameter (D) |
12.0625 in / 306 mm |
| Mounting Depth (E) |
7.94 in / 202 mm |
| Driver Displacement |
0.148 cu ft / 4.19 L |
| Net Weight |
25.35 lbs / 11.5 kg |
| *Frontal grille protrusion measured from mounting surface |
Parameters
| 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 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 |
