Gravity Audio WARZONE WZ5000.1D Monoblock Class D Amplifier

The Gravity Audio WARZONE WZ5000.1D is a single-channel Class D car amplifier made for powering a subwoofer system. Its monoblock layout concentrates output into one bass channel, making it suitable for systems that need a dedicated amplifier rather than relying on head-unit power. It supports 1-, 2-, and 4-ohm speaker loads for flexibility when planning a subwoofer configuration.

This amplifier is aimed at car-audio builders who want adjustable low-frequency output in a compact chassis. Published performance controls include a variable low-pass filter, subsonic filter, and variable bass boost, allowing the amplifier to be tailored to the subwoofer and enclosure being used. A wired bass knob is included for convenient level adjustment from the listening position.

The WZ5000.1D uses a Class D, MOSFET pulse-width-modulated power supply design. Class D amplification is commonly used in dedicated bass systems because it provides efficient power conversion in a relatively compact footprint. The published frequency response spans 8 Hz to 180 Hz, covering the low-frequency range used by subwoofer systems.

For source integration, the amplifier provides both high-level and low-level inputs. This lets it work with a range of factory or aftermarket audio systems, provided the installation is correctly wired and the signal level is set appropriately. Its variable low-pass crossover can be adjusted from 40 Hz to 180 Hz to limit the amplifier to bass-focused frequencies.

The published RMS ratings are 1,500 watts at 1 ohm, 900 watts at 2 ohms, and 600 watts at 4 ohms, while marketplace listings also identify a 5,000-watt maximum-power rating at 1 ohm. Match subwoofers by their continuous RMS capability and final wired impedance rather than maximum-power figures. The amplifier also lists high-voltage, low-voltage, over-current, and high-temperature protection circuitry.

Key Features

• Monoblock Class D Design: Dedicated one-channel amplification for a subwoofer-focused system.
• 1-Ohm Stable Operation: Supports 1-, 2-, and 4-ohm final speaker loads.
• Variable Low-Pass Filter: Adjusts bass-pass frequency from 40 Hz to 180 Hz.
• Adjustable Subsonic Filter: Filters very low frequencies from 0 Hz to 50 Hz.
• Remote Bass Knob: Provides convenient adjustment of bass output from the cabin.
• High- and Low-Level Inputs: Helps accommodate factory and aftermarket source units.

Design & Installation

The published specification identifies a compact surface-mount chassis measuring approximately 13.8 inches long, 8.3 inches wide, and 2.5 inches high. Its listed Class D architecture and MOSFET PWM power supply are intended for an efficient dedicated-bass amplifier layout. Chassis material is not specified in the published product information.

Mount the amplifier on a secure, ventilated surface and keep wiring clear of moving parts, heat sources, and sharp edges. Set the final subwoofer impedance no lower than 1 ohm, use either the high-level or low-level input appropriate to the source unit, and adjust gain, low-pass, subsonic, and bass-boost controls during setup. Professional installation is recommended when vehicle wiring, load calculation, or system tuning is unfamiliar.