{"product_id":"jl-audio-subwoofer-marin-m7-12ib-c-gwgw-4-12-pouces","title":"Marine subwoofer M7-12IB-C-GwGw-4","description":"\u003cp\u003e\n    Designed for demanding marine environments, the \u003cstrong\u003eJL Audio M7-12IB-C-GwGw-4 12-inch (300 mm) marine subwoofer\u003c\/strong\u003e 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.\n\u003c\/p\u003e\n\n\u003ch3\u003eAudio performance and power\u003c\/h3\u003e\n\u003cp\u003e\n    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.\n\u003c\/p\u003e\n\n\u003ch3\u003eMarine construction and durability\u003c\/h3\u003e\n\u003cp\u003e\n    The \u003cstrong\u003eJL Audio M7-12IB-C-GwGw-4\u003c\/strong\u003e 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).\n\u003c\/p\u003e\n\n\u003ch3\u003eInstallation and additional features\u003c\/h3\u003e\n\u003cp\u003e\n    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.\n\u003c\/p\u003e","brand":"JL Audio","offers":[{"title":"Default Title","offer_id":56082801492308,"sku":"010-03285-00","price":699.81,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3274\/4788\/files\/01_229e916c-20b4-4e3a-a4a8-2dfbb91c036b.jpg?v=1781187867","url":"https:\/\/skysat.fr\/en-gb\/products\/jl-audio-marine-subwoofer-m7-12ib-c-gwgw-4-12-inch","provider":"Skysat","version":"1.0","type":"link"}