Gravity G3-8D4 8" 4-Ohm Dual Voice Coil Subwoofer

The Gravity G3-8D4 is an 8-inch car audio subwoofer designed to add dedicated low-frequency output to a system using smaller full-range speakers. Its compact driver size can suit installations where a larger subwoofer is not practical. This model uses a dual voice coil configuration and is listed as a 4-ohm woofer.

Built for bass reproduction, the G3-8D4 helps extend the low end that door speakers and coaxial speakers typically cannot reproduce effectively. It is intended for listeners building or upgrading a car audio system with a separate subwoofer stage. The sound focus is on low-frequency impact and dynamic bass response.

The subwoofer uses a competition-grade pressed paper cone paired with a high-roll foam surround. This combination is designed to provide a rigid radiating surface with surround travel suitable for bass duty. The materials also support the product's performance-oriented Warzone-series presentation.

A high-flux motor is paired with an advanced airflow cooling design. These elements are intended to support the driver during sustained use by managing heat around the motor and voice-coil area. Gravity also identifies the design as a dual voice coil subwoofer, giving installers wiring flexibility when matching an amplifier.

The G3-8D4 is a component subwoofer rather than a complete powered enclosure. It is best used with a correctly matched external amplifier, suitable enclosure, and proper wiring. For a balanced system, pair it with full-range speakers and configure the amplifier's crossover so the subwoofer handles low bass frequencies.

Key Features

• 8-Inch Subwoofer: Compact driver format for space-conscious car audio builds.
• Dual Voice Coil Design: Provides wiring flexibility for compatible amplifier systems.
• 4-Ohm Listing: Listed as a 4-ohm car audio woofer.
• Pressed Paper Cone: Competition-grade cone material supports bass reproduction.
• High-Roll Foam Surround: Supports cone movement while adding durability.
• Airflow Cooling Design: Helps manage heat during sustained playback.

Design & Installation

The G3-8D4 combines a pressed paper cone, high-roll foam surround, high-flux motor, and airflow cooling design in an 8-inch subwoofer format. Its dual voice coil construction is intended for car audio installations requiring flexible wiring choices. The driver is part of Gravity's Warzone subwoofer lineup.

Plan the installation around a compatible amplifier, an enclosure designed for this specific driver, and enough mounting clearance for the woofer and its terminals. Confirm the final impedance after wiring both voice coils before connecting the amplifier, and set gain and crossover controls carefully. An enclosure, amplifier, and wiring accessories are not identified in the confirmed product listing.