JBL JBLMARSUBST10GRYAM 10" Marine Audio Subwoofer

The JBL JBLMARSUBST10GRYAM is a 10-inch marine audio subwoofer designed to add low-frequency output to a boat sound system. It is a passive 4-ohm subwoofer, so it requires a compatible external amplifier. The gray finish coordinates with marine installations while providing dedicated bass support for open-air listening.

Built for marine environments, this Stage Marine subwoofer uses an IPX5-rated design with marine-grade materials and components. Its polypropylene cone, rubber surround, one-piece polymer basket, stainless-steel mounting hardware, and UV-resistant grille are intended for exposure to spray, sunlight, and washdowns. These construction details make it suited to boats where conventional car-audio components may not be appropriate.

The driver handles 200 watts RMS and 600 watts peak, with a 30 Hz to 250 Hz frequency response. JBL rates sensitivity at 88 dB measured at 2.83V. This combination is intended to reinforce bass frequencies that can be harder to hear in an open-air marine setting.

Installation flexibility is a central part of the design. The JBLMARSUBST10GRYAM can be used in an infinite-baffle/free-air location, a sealed enclosure, or a vented enclosure. That gives installers options based on available boat space and the desired enclosure approach.

Use this subwoofer as the low-frequency section of a marine system with full-range marine speakers and an amplifier matched for a 4-ohm load. Its 10-inch format offers a practical size for many helm, cockpit, cabin, and storage-compartment installations. JBL includes the primary mounting and connection accessories needed to prepare the driver for installation.

Key Features

• 10-Inch Marine Subwoofer: Adds dedicated bass reproduction to a compatible boat audio system.
• 200W RMS Power Handling: Supports amplifier matching up to its continuous power rating.
• IPX5 Marine Rating: Helps suit the subwoofer to wet outdoor marine environments.
• Polypropylene Cone: Provides a marine-ready cone material for bass reproduction.
• Flexible Enclosure Use: Supports free-air, sealed, or vented installation approaches.
• Gray UV-Resistant Grille: Provides a finished appearance with protection from sunlight exposure.

Design & Installation

The JBLMARSUBST10GRYAM combines a polypropylene cone and rubber surround with a one-piece polymer basket. Its attached grille is sealed and UV resistant, while the included mounting hardware is stainless steel. These materials are selected for marine use where moisture, salt spray, and sunlight are common concerns.

Confirm the 9-11/64-inch mounting cutout and 4-13/32-inch mounting-depth requirements before cutting a panel. Connect the subwoofer to an amplifier that is stable at its 4-ohm nominal impedance, then select free-air, sealed, or vented mounting according to available space and system goals. The package includes a foam gasket, subwoofer pigtail harness, drill bit, and mounting hardware to assist with installation.