Cerwin-Vega H15DV4 15" Dual 4-Ohm Subwoofer

The Cerwin-Vega H15DV4 is a 15-inch HED Series car audio subwoofer designed to add substantial low-frequency output to a custom vehicle sound system. Its dual 4-ohm voice coils provide wiring flexibility for matching a compatible mono or multi-channel amplifier. It is intended for listeners building a dedicated bass system rather than relying on factory speakers alone.

With a 750-watt RMS power rating and 2,250-watt maximum rating, the H15DV4 is suited to systems that need a large-diameter woofer with meaningful power capability. Its 15-inch cone area helps move air for weighty bass reproduction. The 27 Hz resonant frequency supports low-frequency extension when the driver is used in a properly designed enclosure.

The subwoofer uses a hybrid polypropylene and treated paper cone to balance rigidity and responsiveness. A stitch-reinforced treated TPE foam surround is designed to support extended cone travel, while the ferrite motor structure supplies the magnetic force needed for controlled operation. This combination gives the H15DV4 a bass-forward character appropriate for high-output car audio builds.

Dual 4-ohm coils allow the H15DV4 to be wired for either a 2-ohm parallel load or an 8-ohm series load. Both voice coils should be connected to an amplification source, and the amplifier must be stable at the final impedance. This makes the subwoofer useful for installers tailoring a system around an amplifier's rated load capability.

The H15DV4 can be installed in either a sealed or ported subwoofer enclosure. A sealed design is suited to controlled bass response, while a ported enclosure can emphasize output when designed for the driver. Its 7.66-inch mounting depth and 13.94-inch cutout requirement should be checked carefully before selecting an enclosure or mounting location.

Key Features

• 15-Inch HED Woofer: Large cone area supports strong low-frequency output.
• Dual 4-Ohm Coils: Supports 2-ohm parallel or 8-ohm series wiring.
• 750W RMS Handling: Matches with appropriately rated external amplification.
• Hybrid Cone: Polypropylene and treated paper balance strength and response.
• Reinforced Foam Surround: Supports excursion while maintaining cone support.
• Sealed Or Ported Use: Works with either enclosure approach.

Design & Installation

The H15DV4 is built around a stamped-steel basket, ferrite ceramic magnet, hybrid cone, and treated foam surround. Its 4-inch voice coil diameter and 11 mm Xmax are part of a design intended for substantial excursion and power handling. The overall driver diameter is 15.63 inches, with an overall height of 8.39 inches.

Plan the installation around the 13.94-inch cutout diameter and 7.66-inch mounting depth, leaving adequate clearance behind the motor structure. Wire both 4-ohm voice coils with correct polarity and choose either series or parallel wiring only if the amplifier supports the resulting 8-ohm or 2-ohm load. Use a securely mounted sealed or ported enclosure, protect wiring from sharp edges, and use grommets where wires pass through drilled metal openings.