M7-12IB-S-GwGw-4 Marine Subwoofer
In stock
Technical specifications
Technical specifications
| Speaker Diameter In | 12 |
| IP rating | Résistant à l'eau |
| Color | Blanc |
| Enclosure Type | Infinite baffle |
| Impedance | 4 |
| Diamètre de découpe d'encastrement | 306.4 |
| 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 |
| Diamètre extérieur total | 355.6 |
| Rgb Led Illumination | Oui |
| Salt Fog Resistance | Oui |
| UV resistance | Oui |
| Weight | 14.10 |
Detailed description
Detailed description
Designed for demanding marine environments, the JL Audio M7-12IB-S-GwGw-4 12-inch (300 mm) marine subwoofer delivers powerful and precise bass reproduction. Part of JL Audio’s M7 series, it is optimized for infinite baffle applications, allowing flexible installation without requiring a dedicated enclosure. This subwoofer is designed to operate with a large air volume behind it, of at least 84.95 litres (3 cubic feet).
Design and marine robustness
The M7-12IB-S-GwGw-4 features marine-grade construction to withstand saltwater and harsh conditions. It includes a corrosion-resistant polymer basket that encapsulates the motor system, an injection-molded mica-loaded polypropylene woofer cone, and a synthetic rubber surround. A marine-grade synthetic fiber spider with a progressive profile and marine-grade brass terminals complete its design. The bright white Sport grille and trim ring are UV-resistant.
Audio performance and integration
With a continuous power handling of 600 W RMS and a nominal impedance of 4 Ω, this 12-inch subwoofer can deliver a sound pressure level of 86.7 dB SPL (1 W / 1 m). It features a 4-inch voice coil and a robust suspension system for a linear excursion of 18.5 mm (0.73 in), ensuring high output. The motor design is optimized using JL Audio’s Dynamic Motor Analysis (DMA). The integrated Transflective™ RGB LED lighting allows for color-changing effects through the woofer cone, with multiple color options via a separately sold RGB controller. Professional installation is recommended, and the addition of a fast-blow inline fuse on the positive power wire is required for each speaker.
Installation dimensions
The mounting diameter is 306 mm (12.0625 in) with a mounting depth of 202 mm (7.94 in). The total diameter of the subwoofer is 356 mm (14.00 in). Pilot hole recommendations for #10 screws are 1/8" for fiberglass up to 0.125" thick, and 9/64" for fiberglass thicker than 0.125".
Expert opinion
Expert opinion
« Analyse technique du subwoofer marin JL Audio M7 12" à baffle infini »
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