Marine subwoofer M7-12IB-S-GmTi-4
In stock
Technical specifications
Technical specifications
| Speaker Diameter In | 12 |
| Audio Output Power Rms | 600 |
| IP rating | Résistant à l'eau de mer |
| Color | Titane |
| Enclosure Type | Infinite baffle |
| Grille Diameter Mm | 355.6 |
| Impedance | 4 |
| Led Lighting Present | Oui |
| Diamètre de découpe d'encastrement | 306.4 |
| Mounting Depth | 202 |
| Mounting Pilot Hole Diameter Fiberglass Thick | 3.57 |
| Mounting Pilot Hole Diameter Fiberglass Thin | 3.175 |
| Mounting Screw Size Diameter | 4.826 |
| Mounting type | Encastré |
| Operating voltage | 12 |
| Diamètre extérieur total | 325.4 |
| Speaker Diameter Mm | 300 |
| Weight | 14.10 |
Detailed description
Detailed description
Designed for demanding marine integration, the JL Audio M7-12IB-S-GmTi-4 is a 12-inch (300 mm) speaker optimized for infinite baffle applications. It delivers a continuous power handling (RMS) of 600 W and a nominal impedance of 4 Ω, ensuring precise and powerful bass reproduction in marine environments.
Acoustic design and performance
This subwoofer is specifically engineered to operate without a dedicated enclosure, requiring a large air volume behind it (minimum 84.95 L or 3 cubic feet) for optimal performance. Its motor is optimized by JL Audio’s Dynamic Motor Analysis (DMA) technology, reducing distortion and improving transient response, producing clear and articulate bass. With a 4-inch voice coil and a linear excursion (Xmax) of 18.5 mm (0.73 inches), it ensures high output and efficient power handling. Sensitivity is 86.7 dB SPL (1 W / 1 m), with a free-air resonance (Fs) of 35.34 Hz.
Marine construction and durability
The M7-12IB-S-GmTi-4 is built to withstand saltwater marine environments. It features UV inhibitors, corrosion-resistant polymer baskets, marine-grade synthetic spider suspensions, and gold-plated brass binding posts. The cone is made of mica-injected polypropylene, with a synthetic rubber surround. The design is completed with a metallic gray trim ring and a titanium sport grille.
Detailed technical specifications
The subwoofer has an overall diameter of 356 mm (14.00 inches) and a cutout diameter of 306 mm (12.0625 inches), with a mounting depth of 202 mm (7.94 inches). Its net weight is 11.5 kg (25.35 lb), and its speaker displacement is 4.19 L (0.148 cubic feet). Thiele-Small parameters include a Qes of 0.856, Qms of 10.389, Qts of 0.791, and Vas of 56.35 L (1.99 cubic feet). It is recommended to use an amplifier power range between 200 W and 600 W RMS. It is important to note that this specific model (M7-12IB-S-GmTi-4) does not include integrated RGB LED lighting functionality, which is typically indicated by an 'i' in the model designation (e.g., M7-12IB-S-GmTi-i-4).
Expert opinion
Expert opinion
« Subwoofer marin JL Audio M7-12IB-S-GmTi-4 : Performance et intégration en baffle infini »
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