Marine subwoofer M7-12IB-C-GwGw-4
In stock
Technical specifications
Technical specifications
| Speaker Diameter In | 12 |
| IP rating | Résistant à l'eau de mer |
| Color | Blanc |
| Code-barres du produit | 0699440936699 |
| Enclosure Type | Infinite baffle |
| Impedance | 4 |
| Diamètre de découpe d'encastrement | 306.4 |
| Mounting Depth | 171 mm |
| Mounting Flange Diameter In | 12.813 |
| Mounting Flange Diameter Mm | 325.4 |
| Mounting Pilot Hole Diameter Fiberglass Thick | 3.57 |
| Mounting Pilot Hole Diameter Fiberglass Thin | 3.175 |
| Mounting type | Encastré |
| Operating voltage | 12 |
| Overall Diameter In | 14.00 |
| Diamètre extérieur total | 355.6 |
| Weight | 14.05 |
Detailed description
Detailed description
Designed for demanding marine environments, the JL Audio M7-12IB-C-GwGw-4 12-inch (300 mm) marine subwoofer delivers deep bass reproduction for onboard audio systems. It is optimized for infinite-baffle mounting applications, requiring a rear air volume of at least 84.95 liters (3 ft³). This model is also compatible with large sealed or vented enclosures.
Audio performance and power
This subwoofer features an RMS power handling of 600 watts and a nominal impedance of 4 ohms. Its high-temperature 4-inch (10.16 cm) voice coil and maximum linear excursion (Xmax) of 18.5 mm contribute to high efficiency and reduced distortion. Sensitivity is 86.7 dB SPL (1 W / 1 m), and its free-air resonance frequency (Fs) is 35.34 Hz. It is recommended to pair it with an amplifier delivering between 200 and 600 watts. The motor system is optimized by JL Audio’s DMA (Dynamic Motor Analysis) technology for precise and articulate bass.
Marine construction and durability
The JL Audio M7-12IB-C-GwGw-4 features an injection-molded polypropylene cone (mica-filled) and a synthetic rubber surround formulated with UV inhibitors. The UV- and corrosion-resistant polymer basket encapsulates the motor system, while the marine-grade synthetic spider, with progressive profiles, resists high humidity. The connection terminals are gold-plated marine-grade brass. This subwoofer undergoes UV testing (to simulate sun exposure) and salt spray chamber testing (to simulate saltwater exposure) to ensure reliability and longevity in marine conditions. Its net weight is 11.5 kg (25.35 lbs).
Installation and additional features
The cutout diameter for installation is 306 mm (12.0625 inches), and the mounting depth is 202 mm (7.94 inches). An optional RGB LED lighting system is integrated, requiring a separate 12 V wiring harness for each speaker. Individual wires allow up to seven fixed LED colors; an RGB lighting controller (sold separately) is required for adjustable settings. A fast inline fuse must be installed on the positive LED cable to protect components. Marine-grade stainless steel mounting hardware is included.
Expert opinion
Expert opinion
« Subwoofer JL Audio M7-12IB : Performances et durabilité en milieu marin »
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