Memphis VIV1212 12" Selectable-Impedance Subwoofer

The Memphis VIV1212 is a 12-inch component car subwoofer designed for systems that need substantial low-frequency output in a conventional subwoofer enclosure. Its selectable 1- or 2-ohm configuration helps simplify matching the subwoofer to a compatible mono amplifier. It is intended for enthusiasts building or upgrading a dedicated bass system rather than replacing a full-range factory speaker.

With a 1000-watt RMS and 2000-watt peak power rating, the VIV1212 is suited to amplifiers with appropriate continuous power output at the chosen impedance. Its sensitivity is rated at 85.5 dB at 1 ohm and 84.8 dB at 2 ohms. This gives installers a documented basis for amplifier selection and system planning.

Memphis FLEX technology lets the user choose either a 1-ohm or 2-ohm impedance setting by repositioning the FLEX jumper plug. This can be useful when changing amplifiers or revising the system's load configuration without replacing the subwoofer. The selectable setup should be matched carefully to an amplifier that is stable at the selected load.

The VIV1212 uses a folded V-Groove surround designed to support increased cone excursion while maintaining effective cone area. Its 3-inch aluminum voice coil and DVVC Direct Vent Voice Coil Cooling are designed to manage heat during sustained playback. A 162-ounce magnet supports the subwoofer's motor structure.

This model is part of the Memphis VIV SixFive series and is built as a non-enclosed component subwoofer. It can be integrated into a custom or compatible prebuilt enclosure with an 11-inch cutout and at least 7.5 inches of mounting-depth clearance. The result is a flexible option for installers who want selectable impedance in a 12-inch format.

Key Features

• FLEX Selectable Impedance: Choose a 1-ohm or 2-ohm load with the repositionable jumper plug.
• 1000-Watt RMS Rating: Supports appropriately matched high-power mono amplification.
• DVVC Cooling: Direct venting helps manage voice-coil heat during extended use.
• Folded V-Groove Surround: Supports increased excursion while preserving effective cone surface.
• 3-Inch Aluminum Voice Coil: Provides a durable motor component for high-power operation.
• Cast Aluminum Basket: Provides a rigid mounting structure for the subwoofer assembly.

Design & Installation

The VIV1212 combines a carbon-fiber cone, double-stitched V-Groove surround, cast aluminum basket, 3-inch aluminum voice coil, and 162-ounce magnet. The basket incorporates venting, while Memphis DVVC Direct Vent Voice Coil Cooling is used to help manage motor heat. These elements support the subwoofer's high-power design and excursion-focused suspension.

Confirm that the enclosure and mounting location provide an 11-inch cutout and at least 7.5 inches of mounting depth. Select the 1- or 2-ohm FLEX setting before final wiring, then use an amplifier that is rated to operate safely at that load and is appropriately matched to the 1000-watt RMS rating. The product is a component subwoofer, so an enclosure, amplifier, wiring, and installation hardware are required separately unless supplied by the retailer as part of a package.