Gravity GR-12PW 12" Dual 4-Ohm Car Subwoofer

The Gravity GR-12PW is a 12-inch car audio subwoofer designed to add dedicated low-frequency output to an aftermarket sound system. Its dual 4-ohm voice coil configuration provides wiring flexibility for matching a compatible mono or multi-channel amplifier. It is intended for listeners building or upgrading a system that needs stronger bass than typical full-range vehicle speakers can provide.

With a 600-watt RMS and 1,200-watt peak power rating, the GR-12PW is suited to amplification selected around its continuous power capability. Its stated 30 Hz to 2.5 kHz frequency response supports low-bass reproduction while allowing an external amplifier or processor to set the appropriate low-pass crossover. The 90 dB sensitivity rating indicates efficient output relative to input power.

The subwoofer uses a competition-grade pressed paper cone intended to keep the moving assembly responsive for bass playback. A high-roll foam surround supports cone travel while helping the driver reproduce lower frequencies. Together, these materials are designed for the demands of a dedicated automotive subwoofer installation.

Gravity specifies an advanced airflow cooling system to help manage heat during sustained use. Heat control is especially important when a subwoofer is driven near its rated continuous-power range. Proper gain setting and a clean amplifier signal remain important for reliable operation.

The GR-12PW can be used as the bass section of a custom car audio system with an external amplifier, enclosure, wiring, and source signal. Its two 4-ohm voice coils can be wired in parallel for a 2-ohm nominal load or in series for an 8-ohm nominal load. Choose the enclosure, amplifier, and wiring arrangement according to the amplifier manufacturer's supported impedance and power ratings.

Key Features

• 12-Inch Subwoofer: Adds dedicated bass capability to an aftermarket vehicle audio system.
• Dual 4-Ohm Voice Coils: Supports series or parallel wiring options for compatible amplifiers.
• 600W RMS Rating: Provides a continuous-power reference for amplifier matching.
• Pressed Paper Cone: Uses a lightweight cone material for responsive bass reproduction.
• High-Roll Foam Surround: Supports cone movement during low-frequency playback.
• Airflow Cooling System: Helps manage heat during extended operation.

Design & Installation

The GR-12PW combines a competition-grade pressed paper cone with a high-roll foam surround and an advanced airflow cooling system. This construction focuses on the moving parts and thermal management needed for a dedicated bass driver. The driver is a passive, wired subwoofer and requires external amplification.

Install the GR-12PW in a properly sized enclosure and use an amplifier that is stable at the final impedance created by the voice-coil wiring. Wire its coils in parallel only when the amplifier supports a 2-ohm load; series wiring produces an 8-ohm nominal load. Set amplifier gain carefully, use an appropriate low-pass crossover, and verify mounting clearance before choosing an enclosure.