Cerwin-Vega HS12DV2 12" Shallow Dual 2-Ohm Subwoofer

The Cerwin-Vega HS12DV2 is a 12-inch shallow-mount car subwoofer designed to add low-frequency output where installation depth is limited. Its slim 4.25-inch mounting depth helps it fit applications that cannot accommodate a conventional full-depth woofer. It is intended for vehicle audio systems using an external subwoofer amplifier and enclosure.

This HED Slim Series model uses dual 2-ohm voice coils, giving installers useful impedance choices when matching a compatible amplifier. One HS12DV2 can be wired to a 1-ohm load in parallel or a 4-ohm load in series. Both voice coils should be connected to an amplification source for proper operation.

With a 400-watt RMS power rating and 1,200-watt maximum rating, the HS12DV2 is suited to systems built around clean, appropriately matched amplifier power. Its 84 dB sensitivity and 31 Hz free-air resonance support substantial bass extension in a properly designed enclosure. The long-excursion design provides 8 mm of Xmax.

The subwoofer combines a polypropylene-based hybrid cone design with a treated foam surround to support controlled cone movement. A ferrite motor structure and 2.5-inch voice coil provide the foundation for its shallow-profile design. The stamped-steel basket provides a stable mounting platform.

The HS12DV2 can be used in either sealed or ported enclosures depending on the desired system character and available space. Cerwin-Vega documentation lists a 1.25 cubic foot sealed enclosure and a 1.75 cubic foot ported enclosure as recommended starting points. It is a practical upgrade for trucks, coupes, sedans, and other vehicles where bass is wanted without sacrificing excessive cargo space.

Key Features

• Shallow-Mount 12-Inch Design: Uses a 4.25-inch mounting depth for installations with limited clearance.
• Dual 2-Ohm Voice Coils: Supports 1-ohm parallel or 4-ohm series wiring with one subwoofer.
• 400W RMS Power Handling: Matches with an amplifier that delivers clean power within its rated range.
• Hybrid Cone Construction: Combines polypropylene and treated-paper design elements for responsive bass reproduction.
• 8 mm Xmax: Provides long-excursion capability for low-frequency output in a slim format.
• Sealed Or Ported Compatibility: Lets installers tailor the enclosure to space and bass-response goals.

Design & Installation

The HS12DV2 uses a polypropylene cone material, treated foam surround, stamped-steel basket, and ferrite ceramic magnet structure. Its 2.5-inch voice coil is specified with dual 2-ohm windings, while the shallow frame measures 12.56 inches overall in diameter. The listed overall height is 4.84 inches.

Allow for the 11.18-inch cutout diameter and 4.25-inch mounting depth when planning the enclosure. A 1.25 cubic foot sealed box is the recommended reference enclosure for compact, controlled bass, while the recommended ported volume is 1.75 cubic feet. For ported systems, Cerwin-Vega documentation recommends a subsonic filter set to at least 30 Hz; confirm the amplifier is stable at the final wired impedance before installation.