Cerwin Vega V65DV4 6.5" Dual 4-Ohm Car Subwoofer

The Cerwin Vega V65DV4 is a compact 6.5-inch car audio subwoofer designed to add dedicated low-frequency output where installation space is limited. Its dual 4-ohm voice coil design gives system builders wiring flexibility for compatible mono amplifiers. It is a passive subwoofer and requires an external amplifier and enclosure or mounting solution appropriate for the installation.

With a 500-watt RMS and 1,500-watt maximum power rating, the V65DV4 is intended for systems that need more bass capacity than factory full-range speakers can provide. Its 82 dB sensitivity and 74 Hz resonant frequency describe a compact driver built for a focused subwoofer role. Proper amplifier setup, crossover configuration, and enclosure design remain important to overall results.

The V65DV4 uses a hybrid carbon fiber and polypropylene diaphragm construction. This combines polypropylene with carbon fiber material to create a cone designed for controlled movement under load. A stitch-reinforced Santoprene surround supports the driver’s 6.5 mm Xmax specification.

A ferrite motor structure supplies the magnetic system behind the voice coil assembly. The subwoofer also uses a cast aluminum basket, providing a rigid mounting foundation for the driver components. Its 2.5-inch voice coil is paired with dual 4-ohm coils for series or parallel wiring.

This model fits a custom bass upgrade path for vehicles with limited mounting depth or available enclosure volume. Dual 4-ohm coils can be wired for a 2-ohm parallel load or an 8-ohm series load, provided the amplifier is rated for the selected load. It can be used as a single compact subwoofer or as part of a multi-subwoofer system when amplifier loading and total power handling are planned correctly.

Key Features

• 6.5-Inch Subwoofer: Compact driver size supports space-conscious car audio builds.
• Dual 4-Ohm Voice Coils: Allows 2-ohm parallel or 8-ohm series wiring.
• 500W RMS Handling: Supports amplifier matching within its continuous power rating.
• Hybrid Cone: Carbon fiber and polypropylene diaphragm materials support controlled cone movement.
• Santoprene Surround: Stitch-reinforced surround supports the driver’s excursion capability.
• Ferrite Motor: Magnetic motor structure drives the 2.5-inch voice coil.

Design & Installation

The V65DV4 combines a cast aluminum basket, ferrite magnet structure, hybrid carbon fiber/polypropylene diaphragm, and stitch-reinforced Santoprene surround. These materials form the subwoofer’s moving assembly and support structure. The driver has a 6.95-inch overall diameter, 5.28-inch overall height, and 4.65-inch mounting depth.

Confirm a 5.75-inch cutout and at least 4.65 inches of mounting depth before installation. Both voice coils must be connected to the amplification source; wire the dual 4-ohm coils in parallel for a 2-ohm load or in series for an 8-ohm load. Use an amplifier stable at the chosen impedance, set a suitable low-pass crossover, and follow the enclosure and wiring guidance for the complete system.