Subwoofer marin M7-12IB-S-GmTi-4 - visuel officiel 1

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JL Audio

010-03288-00

M7-12IB-S-GmTi-4 marine subwoofer enclosure

The JL Audio M7-12IB-S-GmTi-4 marine subwoofer is a 12-inch (300 mm) speaker designed for infinite baffle applications, delivering 600 W RMS and a 4 Ω impedance. It features a robust marine-grade construction with corrosion- and UV-resistant materials for enhanced durability in saltwater environments, and an optimized DMA motor for precise bass.

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Retail priceBenefit from the professional rate

732,35€

732,35€ ~~808,33€~~

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Prices shown excluding VAT for Türkiye. If your delivery address is in the European Union, the VAT of the destination country will be added at checkout.

Available in stock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

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Support service

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Technical specifications

Speaker Diameter In	12
Audio Output Power Rms	600
IP rating	Resistant to seawater
Color	Titanium
Enclosure Type	Infinite baffle
Grille Diameter Mm	14.00
Impedance	4
Led Lighting Present	Yes
Cutout diameter	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	Flush-mounted
Operating voltage	12
Overall diameter mm	325.4
Speaker Diameter Mm	300
Weight	14.10

Detailed description

Designed for demanding marine integration, the JL Audio M7-12IB-S-GmTi-4 is a 12-inch (300 mm) woofer 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 volume of air behind it (minimum 84.95 L or 3 cubic feet) for optimal performance. Its motor is optimized using 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 inch), 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, high-quality marine-grade synthetic spider suspensions, and gold-plated brass terminals. The cone is made of injection-molded mica-filled polypropylene with a synthetic rubber surround. The design is completed with a metallic gray finish 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).

Documentation

Type	Nom
	Gabarit de montage - Gabarit d'installation pour subwoofer marin M7-12IB (EN)
	Notice d'installation - Instructions d'installation pour subwoofer marin M7-12IB

Expert opinion

« Marine subwoofer JL Audio M7-12IB-S-GmTi-4: performance and infinite baffle integration »

The JL Audio M7-12IB-S-GmTi-4 marine subwoofer positions itself as a top-tier solution for demanding audio installations in a marine environment. Its infinite baffle design is a major asset, allowing flexible integration without the constraints of a dedicated enclosure, provided there is sufficient rear air volume. This feature is particularly relevant for boats where space is often limited, offering greater installation flexibility in existing bulkheads or structures.

Robustness is central to this product. Marine-grade materials, from polymer baskets to gold-plated terminals, ensure resistance to marine-specific elements such as humidity, salt, and UV rays. This attention to detail guarantees longevity and operational reliability, essential for equipment exposed to the harsh conditions of the sea. The integration of a DMA-optimized motor and a 4-inch voice coil delivers high-fidelity low-frequency reproduction with minimal distortion, even at high sound pressure levels. This is crucial for maintaining consistent sound quality in the face of the inherent ambient noise of sailing.

During installation, it is imperative to follow the recommendations for pilot hole diameters for mounting screws to ensure secure mechanical retention. The need for a separate 12V wiring harness for the LEDs (if the model were equipped with them, which it is not in this case) and the installation of an inline fuse are standard precautions for protecting the audio system. With its titanium sport grille and metallic gray finish, this model visually integrates into most modern boat interiors, offering a refined aesthetic in addition to its acoustic performance.

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M7-12IB-S-GmTi-4 marine subwoofer enclosure

732,35€

732,35€ ~~808,33€~~

Frequently Asked Questions

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What is the nominal size of the JL Audio M7-12IB-S-GmTi-4 marine subwoofer?

The JL Audio M7-12IB-S-GmTi-4 subwoofer has a nominal size of 12 inches, which is approximately 300 mm.

What is the continuous RMS power of this marine subwoofer?

This JL Audio M7-12IB-S-GmTi-4 marine subwoofer delivers 600 W RMS continuous power handling.

What is the nominal impedance of the M7-12IB-S-GmTi-4 subwoofer?

The nominal impedance of this subwoofer is 4 Ω, which is important information when selecting your amplifier.

Is the M7-12IB-S-GmTi-4 subwoofer specifically designed for a marine environment?

Yes, this subwoofer is specifically designed for demanding marine integration. It is water-resistant and built with materials suited to marine conditions.

Is this subwoofer waterproof and can it be submerged?

This product is water-resistant. However, it must not be submerged or exposed to high-pressure water jets to avoid damage.

Which mounting type is optimized for the subwoofer M7-12IB-S-GmTi-4?

The M7-12IB-S-GmTi-4 subwoofer is optimized for infinite baffle applications, meaning it is designed to be mounted in a large flat surface that separates the front sound wave from the rear sound wave.

Does the M7-12IB-S-GmTi-4 subwoofer include RGB LED lighting?

Yes, this subwoofer is equipped with integrated RGB LED lighting. For the LED function to work, a separate 12V wiring connection is required at each speaker location.

What LED lighting colors are available with this subwoofer?

Individual wires of the LED lighting can be wired to achieve up to seven fixed LED colors. For adjustable and custom color control, an RGB lighting controller is required and sold separately.

Is it recommended to have this subwoofer installed by a professional?

Yes, installing this subwoofer requires appropriate tools and safety equipment. Installation by a professional is strongly recommended to ensure performance and safety.

What precautions should be taken before installing the subwoofer?

Before installation, it is important to:

Turn off the audio system and disconnect the battery from the audio system. Check for potential obstacles behind mounting surfaces before cutting or drilling. Do not mount this product in an engine compartment or any other area of extreme heat. Securely fasten this product to prevent serious damage or injury in extreme conditions.

Which type of screws and pilot holes are recommended for the mounting?

For mounting, #10 screws are recommended. Pilot hole diameters vary depending on fiberglass thickness:

For fiberglass 0.125" (3.175 mm) thick or less: 1/8" (3.175 mm)
For fiberglass thicker than 0.125" (3.175 mm): 9/64" (3.57 mm)

In which areas should I not install this subwoofer?

It is imperative not to install this product in an engine compartment or any other area subject to extreme heat, as this could damage the subwoofer and void the warranty.

What type of fuse is required to protect the LED lighting of the subwoofer M7-12IB?

You must install a 750 mA fast-blow inline fuse on the positive wire, at the power source end of the LED cable for each speaker. This protects the LEDs and speaker from excessive electrical current. Failing to install a fuse can result in a fire.

How should I clean and maintain my marine subwoofer?

To clean your subwoofer, use only mild soap and rinse it with fresh water. Avoid abrasive cleaners or high-pressure water jets that could damage the product.

Which type of amplifier is compatible with the M7-12IB-S-GmTi-4 subwoofer?

Given that the M7-12IB-S-GmTi-4 subwoofer has a nominal impedance of 4 Ω and an RMS power of 600 W, it is compatible with marine amplifiers capable of delivering at least 600 W RMS at 4 ohms. It is recommended to select an amplifier with an output power matched or slightly higher than the subwoofer's RMS power for optimal performance.

Do I need a separate controller to manage the RGB LED lighting of the subwoofer?

Yes, for adjustable and custom control of RGB LED lighting (beyond the seven fixed colors obtained by direct wiring), you will need an RGB lighting controller. This controller is sold separately and allows you to select from a wider range of colors and effects.