Cerwin-Vega VMAX65D4 6.5" Dual 4-Ohm Subwoofer

The Cerwin-Vega VMAX65D4 is a 6.5-inch dual-voice-coil car subwoofer designed for bass reinforcement where installation space is limited. It gives a vehicle audio system a dedicated low-frequency driver rather than asking door speakers to reproduce demanding bass notes. With 200 watts RMS power handling, it is suited to compact custom enclosures and multi-subwoofer installations.

This VMAXX Series model is intended for listeners building a vehicle sound system around a separate amplifier and enclosure. Its dual 4-ohm voice coils provide wiring flexibility, with listed series resistance options of 2 ohms or 8 ohms. That flexibility can help an installer match the subwoofer configuration to a compatible amplifier and overall system plan.

The VMAX65D4 uses a treated semi-pressed pulped cone and treated foam surround to support controlled movement. Its 10 mm Xmax specification and 60.7 Hz free-air resonance reflect a compact subwoofer engineered for focused bass output. The 83 dB SPL rating should be considered when planning amplifier power and output expectations.

Construction includes a heavy-duty aluminum cast frame, oversized spider, and elevated motor structure with a cooling design. The black-coated voice coil is specified for higher thermal capability, while a shorting ring is used to help reduce distortion. A polished bumped backplate and Klippel DA-optimized motor and suspension symmetry further support consistent mechanical operation.

Use the VMAX65D4 as a single compact bass driver or as part of a multiple-subwoofer system. Cerwin-Vega lists both sealed and ported enclosure recommendations, allowing the enclosure type to be selected around available space and desired system behavior. Confirm mounting clearance, enclosure volume, amplifier stability, and final wiring impedance before installation.

Key Features

• 6.5-Inch Subwoofer: Adds dedicated bass capability in compact vehicle installations.
• 200W RMS Handling: Supports pairing with an appropriately rated external amplifier.
• Dual 4-Ohm Voice Coils: Provides series or parallel wiring flexibility.
• 10 mm Xmax: Allows substantial cone travel for its size.
• Cast Aluminum Frame: Provides a rigid foundation for the driver assembly.
• Shorting Ring: Helps reduce distortion during operation.

Design & Installation

The VMAX65D4 combines a black design-patterned treated semi-pressed pulped cone with a treated foam surround and heavy industrial-strength aluminum cast frame. Its motor assembly includes a single stacked magnet structure, elevated cooling design, oversized spider, polished bumped backplate, and black-coated voice coil. Oversized polished black chrome-finished terminals provide the connection points for the dual voice coils.

Plan for a 5.59-inch mounting cutout, 4.25-inch mounting depth, and 6.89-inch overall diameter. Cerwin-Vega lists 0.4 cubic foot sealed and 0.75 cubic foot ported enclosure volumes; enclosure construction and tuning should be handled carefully for the intended application. This is a passive subwoofer, so it requires a suitable external amplifier, speaker wiring, enclosure, and secure mounting hardware.