Subwoofer marin M7-12IB-S-GwGw-i-4 - visuel officiel 1

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JL Audio

010-03287-00

M7-12IB-S-GwGw-i-4 marine subwoofer enclosure

The JL Audio M7-12IB-S-GwGw-i-4 marine subwoofer is a 12-inch (300 mm) speaker optimized for infinite baffle applications, delivering 600 watts RMS with a 4-ohm impedance. It features an RGB Transflective™ LED backlight and is built with marine-grade UV- and corrosion-resistant materials. Its robust suspension system and 4-inch voice coil ensure precise, powerful bass.

Shipped as a single unit, including the sport grille and stainless steel mounting hardware.

Price excl. import taxesBenefit from the professional rate

$925.00 USD

$925.00 USD ~~$1,037.00 USD~~

Shipping calculated at checkout.

Prices exclude import taxes. DAP delivery: import taxes are paid on delivery.

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

Find an installer

Support service

Opt for additional installation assistance

Technical specifications

Speaker Diameter In	12
IP rating	Waterproof (marine grade)
Color	White
Enclosure Type	Infinite baffle
Impedance	4
Led Color Options	Up to 7 fixed colors
Led Illumination	RGB Transflective
Mounting Bolt Circle Diameter	325.4
Installation cutout diameter	306.4
Mounting Depth	325.4 mm
Mounting Flange Diameter Mm	14.00
Mounting Pilot Hole Diameter Fiberglass Thick	3.57
Mounting Pilot Hole Diameter Fiberglass Thin	3.175
Mounting Screw Size Diameter	4.83
Mounting type	Flush-mounted
Rgb Controller Required	Yes
Weight	13.20

Detailed description

The JL Audio M7-12IB-S-GwGw-i-4 marine subwoofer is a 12-inch (300 mm) woofer designed for infinite baffle applications. It features Transflective™ LED lighting and is equipped with a gloss white finish ring and a sport grille.

Performance and acoustic design

This subwoofer delivers a continuous power handling (RMS) of 600 watts with a nominal impedance of 4 ohms, and operates within a recommended amplifier power range of 200 to 600 watts. Its sensitivity is 86.7 dB (1 W / 1 m). The M7-12IB is optimized for infinite baffle use, requiring a minimum air volume of 3 cubic feet (approximately 85 liters) behind the speaker for optimal performance. It is also compatible with large sealed enclosures (minimum 0.056 m³, optimal 0.085 m³) or vented enclosures (0.14 m³).

Marine construction and durability

Designed for marine environments, this subwoofer features corrosion- and UV-resistant construction. Its cone is made of mica-injected polypropylene with a synthetic rubber surround. The basket is manufactured from a corrosion- and UV-resistant polymer. The suspension system includes a 4-inch voice coil, ensuring linear excursion of 18.5 mm (Xmax) and high power handling. The connection terminals are gold-plated and marine-grade. The DMA (Dynamic Motor Analysis) technology helps reduce distortion and produce accurate bass.

Built-in LED lighting

The M7-12IB-S-GwGw-i-4 subwoofer is equipped with Transflective™ RGB LED lighting that emits diffused light through the speaker cone. The lighting appears silver when off. The LED functionality requires a separate 12 V wiring for each speaker. For adjustable LED control and thousands of color combinations, an RGB controller is required (sold separately). A 750 mA inline fast-blow fuse must be installed on the positive wire of each LED cable to protect the LEDs and speaker from excessive electrical current.

Dimensions and physical specifications

The nominal speaker diameter is 12 inches (300 mm). The cutout diameter is 306 mm (12.0625 inches), and the mounting depth is 202 mm (7.94 inches). The total subwoofer diameter is 356 mm (14 inches). Its net weight is 11.5 kg (25.35 lbs). The free-air resonance frequency (Fs) is 35.34 Hz.

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-GwGw-i-4: infinite baffle low-frequency integration »

The JL Audio M7-12IB-S-GwGw-i-4 subwoofer positions itself as a preferred solution for integrating low frequencies on vessels where a dedicated sealed enclosure is impractical or undesired. Its "infinite baffle" design is particularly relevant for installations where the rear of the speaker can open into a large air volume, such as a bilge or technical compartment, without requiring the construction of a specific acoustic enclosure. This simplifies installation and optimizes onboard space utilization.

The advantage of this model lies in its marine-grade robustness, with materials resistant to corrosion and UV, essential for durability in saline environments. The 4-inch voice coil and robust suspension system ensure high linear excursion, allowing powerful and precise bass reproduction with minimal distortion, even at high volumes. The integration of the RGB Transflective™ LED lighting is an aesthetic asset, offering customizable visual ambiance onboard, provided an external RGB controller is used to fully exploit all color options.

However, it is critical to respect the minimum air volume of 3 cubic feet behind the speaker to leverage its infinite baffle potential. Installation in a space that is too confined will compromise bass performance. The need for a separate 12 V wiring for the LEDs and the addition of an inline fuse are details not to overlook during electrical installation planning to ensure system safety and longevity.

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M7-12IB-S-GwGw-i-4 marine subwoofer enclosure

$925.00 USD

$925.00 USD ~~$1,037.00 USD~~

Frequently Asked Questions

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

The JL Audio M7-12IB-S-GwGw-i-4 marine subwoofer has a 12-inch (approximately 300 mm) diameter.

Is this subwoofer designed for infinite baffle installation?

Yes, this subwoofer is specifically designed for infinite baffle applications, meaning it can be mounted in a large enclosure or bulkhead without requiring a sealed or vented enclosure.

Is the JL Audio M7-12IB subwoofer waterproof?

Yes, this product is water-resistant. However, it must not be submerged or exposed to high-pressure water jets.

What are the specifications of the integrated LED lighting?

The subwoofer features a Transflective™ LED backlight. It requires a separate 12V wiring harness to operate. Wiring can be configured for up to seven fixed LED colors. For adjustable color control, an RGB lighting controller is required and sold separately.

What color is the subwoofer grille?

The subwoofer is fitted with a white trim ring and a sport grille.

What type of protection is required for LED lighting?

You must install a fast-blow inline fuse on the positive wire, on the power source side of the LED cable, for each speaker. This protects the LEDs and the speaker from excessive electrical current. For the M7-12IB model, a 750 mA fuse is recommended.

How to maintain the JL Audio M7 marine subwoofer?

To clean the subwoofer, use a mild soap and rinse it only with fresh water.

Does this subwoofer require specific tools for installation?

Yes, installation requires appropriate tools and safety equipment. Professional installation is recommended to ensure correct and secure setup.

What precautions should I take before starting the installation?

Before starting the installation, you must power off the audio system and disconnect the battery from the audio system. It is also crucial to check for any potential obstructions behind mounting surfaces before cutting or drilling.

Where should I not install this subwoofer?

Do not install this product in an engine compartment or any other area exposed to extreme heat.

How to ensure secure mounting of the subwoofer?

This product must be securely fastened to prevent damage or injury in harsh marine conditions.

What are the recommended drill diameters for mounting screws?

For #10 screws, the recommended drill bit diameters are:

For fiberglass with a thickness of 0.125 inch (approx. 3.175 mm) or less: 1/8 inch (approx. 3.175 mm). For fiberglass thicker than 0.125 inch (approx. 3.175 mm): 9/64 inch (approx. 3.57 mm).

Does LED lighting require separate wiring?

Yes, the LED feature requires a separate 12V wiring at the location of each speaker.

Is an external controller required for RGB LEDs?

For adjustable control of RGB LED lighting, an RGB lighting controller is required. This controller is sold separately.

Is this subwoofer compatible with all marine audio systems?

This subwoofer is designed for integration into marine audio systems. For optimal compatibility, it is recommended to check the power specifications of your amplifier against the capabilities of this 12-inch subwoofer.

Can I use this subwoofer without the LED lighting?

Yes, LED lighting is an optional feature. The subwoofer will operate normally even if the LED wiring is not connected. However, a separate 12V power supply is required to use the lighting.

What are the physical dimensions of the JL Audio M7-12IB subwoofer?

According to the installation diagram, the key dimensions are:

Required cutout diameter: 12.0625 inches (approx. 30.64 cm)
Mounting screw circle diameter: 12.813 inches (approx. 32.55 cm)
Total outer diameter: 14.00 inches (approx. 35.56 cm)

Is the subwoofer supplied with the RGB LED lighting controller?

No, the RGB lighting controller required to adjust the LED colors is sold separately and is not included with the subwoofer.

How important is it to disconnect the battery before installation?

It is crucial to disconnect the battery from the audio system before any installation to prevent electric shocks and short circuits, ensuring your safety and protecting the equipment.

Are there specific regulations regarding the use of lighting on boats?

Yes, it is recommended to check with your local waterways authority for specific regulations regarding the use of accent lighting or speakers on your boat.