Memphis MJP1222 12" Dual 2-Ohm MOJO Pro Subwoofer

The Memphis MJP1222 is a 12-inch MOJO Pro car subwoofer with dual 2-ohm voice coils. It is intended for systems that need substantial low-frequency output while retaining practical enclosure options. With a 750-watt RMS rating, it is suited to a properly matched external subwoofer amplifier.

This model is designed for listeners building an SPL-focused bass system in a car or truck. Its rigid paper cone, foam surround, and progressive spider support controlled cone movement under demanding use. The result is a purpose-built woofer for bass-heavy music and high-output system upgrades.

Memphis equips the MJP1222 with DVVC Direct Vent Voice Coil Cooling and cross-drilled front-plate venting. These features are designed to help manage voice-coil heat during operation. An aluminum shorting ring is also used to reduce inductance.

The dual 2-ohm voice-coil configuration gives installers wiring flexibility. The coils can be wired for either a 1-ohm parallel load or a 4-ohm series load, provided the amplifier is compatible with the selected final impedance. This makes the subwoofer adaptable to a range of mono amplifier setups.

For enclosure planning, Memphis specifies 1.5 cubic feet gross for one sealed subwoofer or 2.5 cubic feet gross for one vented subwoofer. The 6.23-inch mounting depth and 11.34-inch cutout diameter should be checked against the enclosure before installation. It is a component subwoofer, so an enclosure, amplifier, wiring, and installation hardware are needed separately.

Key Features

• Dual 2-Ohm Voice Coils: Supports 1-ohm parallel or 4-ohm series wiring.
• 750 Watts RMS: Handles continuous power in a properly matched system.
• DVVC Cooling: Direct vent voice-coil cooling helps manage operating heat.
• Aluminum Shorting Ring: Reduces inductance as specified by Memphis.
• Rigid Paper Cone: Provides a durable cone structure for bass output.
• Diecast Basket: Creates a rigid foundation for the moving assembly.

Design & Installation

The MJP1222 uses a rigid paper cone, double-stitched foam surround, progressive spider, diecast basket, and single-sided compression terminals. Its 2.5-inch voice coil works with a 120-ounce magnet assembly. Cross-drilled front-plate venting and DVVC cooling are integrated into the subwoofer design.

Use an enclosure that meets the published gross-volume recommendations and confirm the 11.34-inch cutout and 6.23-inch mounting-depth requirements before cutting. Match the amplifier to the 750-watt RMS rating and wire the dual 2-ohm coils only to an amplifier rated for the final 1-ohm or 4-ohm load. A suitable enclosure, amplifier, power wiring, speaker wire, and mounting hardware are required for a complete installation.