M6-8IB-S-GmTi-4 Marine Subwoofer
Available in stock
Technical specifications
Technical specifications
| Speaker Diameter In | 8 |
| Audio Output Power Rms | 150 |
| IP rating | Marine-grade (saltwater and UV resistant) |
| Color | Titanium |
| Enclosure Type | Infinite baffle |
| Impedance | 4 |
| Led Illumination | Yes |
| Mounting Bolt Circle Diameter | 202.438 |
| Cutout diameter | 187.325 |
| Mounting Depth | 127 |
| Mounting Pilot Hole Diameter Fiberglass Thick | 0.125 |
| Mounting Pilot Hole Diameter Fiberglass Thin | 2.778 |
| Mounting Screw Size Diameter | 4.166 |
| Mounting type | Flush-mounted |
| Operating voltage | 12 |
| Overall Diameter | 223.52 |
| Peak Power W | 300 |
| Salt water resistance | Yes |
| Weight | 4.33 |
Detailed description
Detailed description
The JL Audio M6-8IB-S-GmTi-4 marine subwoofer is an 8-inch (200 mm) solution designed for low-frequency reproduction in nautical environments. It features an infinite baffle design, optimized to fit directly into bulkheads or large air-volume cavities without requiring a dedicated enclosure, offering installation flexibility.
Acoustic performance and integration
This subwoofer delivers a continuous power output of 200 watts RMS with a nominal impedance of 4 ohms. It has a sensitivity of 86.8 dB SPL (1W/1m) and a linear excursion (Xmax) of 13.5 mm / 0.53 inches, enabling extended frequency response and precise bass reproduction. The subwoofer is optimized for a recommended air volume of at least 42.5 liters (1.5 cu. ft.) in infinite baffle configuration. DMA (Dynamic Motor Analysis) technology is used to minimize distortion and improve transient performance, ensuring consistent sound quality.
Robust design for marine environments
The M6-8IB-S-GmTi-4 is engineered to withstand marine conditions. It is built with materials resistant to saltwater, corrosion, and UV rays. The cone is made of polypropylene injected and mica-filled (MIPP) with UV inhibitors, while the suspension is synthetic rubber. The corrosion-resistant polymer basket, marine-grade brass terminals, and stainless steel mounting hardware contribute to its durability. The included Gunmetal & Titanium Sport grille is also UV-resistant and can be removed for custom painting.
Detailed technical specifications
Installation dimensions include a cutout diameter of 187 mm (7.375 inches) and a mounting depth of approximately 127 mm (5.00 to 5.07 inches). The total outer diameter is 224 mm (8.8 inches). This subwoofer has a net weight of 3.9 kg (8.7 lbs). It is recommended to install a 750 mA fast-blow inline fuse on the positive power lead (for models equipped with LEDs; this specific model does not include them). Professional installation is recommended to ensure safety and performance.
Expert opinion
Expert opinion
« JL Audio M6-8IB-S-GmTi-4: Marine integration of precise bass »
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