Memphis MJ1212 MOJO 12" Selectable-Impedance Subwoofer

The Memphis MJ1212 MOJO is a 12-inch component car subwoofer built for systems that need substantial low-frequency output. It is rated for 1500 watts RMS and 3000 watts peak power handling. Its selectable 1-ohm or 2-ohm impedance helps accommodate different mono-amplifier system designs.

This subwoofer is intended for enthusiasts building a dedicated bass upgrade rather than replacing a factory speaker. The FLEX impedance system lets the installer choose the operating load with the included jumper plug. That flexibility can simplify amplifier matching while keeping the subwoofer configuration focused on a single driver.

A beefy high-roll surround supports 1 inch of XMAX and up to 1.75 inches of mechanical excursion. This long-travel design is intended to move significant air while maintaining controlled cone motion. The reinforced spider suspension further supports cone control during demanding playback.

The MJ1212 uses a 300-ounce magnet structure and an aluminum triple voice coil designed for high-temperature operation. DVVC Direct Vent Voice Coil Cooling and the vented cast-aluminum basket help move heat away from the motor assembly. These construction details support sustained use in properly designed amplified systems.

Its orange cast-aluminum basket references the traditional MOJO appearance, while the high-gloss carbon-fiber dust cap adds rigidity at the center of the moving assembly. The subwoofer has an 11-inch cutout requirement and approximately 8.5 inches of mounting depth. It is a practical choice for custom enclosures with adequate internal clearance and amplifier power matched to its RMS rating.

Key Features

• FLEX Selectable Impedance: Choose 1-ohm or 2-ohm operation using the included jumper plug.
• 1500W RMS Handling: Supports high-power mono amplifier systems when properly matched.
• High-Roll Surround: Supports 1 inch of XMAX and 1.75 inches of mechanical excursion.
• 300-Ounce Magnet: Provides a substantial motor structure for the driver assembly.
• DVVC Cooling: Direct venting helps remove heat from the voice-coil area.
• Vented Cast Basket: Provides a rigid mounting frame and supports motor ventilation.

Design & Installation

The MJ1212 combines an orange cast-aluminum basket, high-gloss carbon-fiber dust cap, high-roll surround, and reinforced spider suspension. Its aluminum triple voice coil is designed for high-temperature use, while the DVVC cooling system and basket venting help manage heat. These components are arranged for a durable, high-excursion subwoofer platform.

Plan for an 11-inch cutout diameter and approximately 8.5 inches of mounting depth before selecting or building an enclosure. Select the 1-ohm or 2-ohm FLEX setting with the included jumper plug before wiring the subwoofer to an amplifier stable at that load. A separate enclosure and compatible external amplifier are required for installation.