Gravity Audio WZ1000.4 Warzone 4-Channel Class A/B Amplifier

The Gravity Audio WZ1000.4 Warzone is a four-channel car amplifier designed to add external amplification to compatible vehicle audio systems. Its Class A/B design supports a broad range of speaker-upgrade layouts while operating at 2- or 4-ohm loads. It is intended for listeners who need independent amplification for front and rear speakers or other four-channel system configurations.

With a published maximum output of 1000 watts, the WZ1000.4 is built to provide added power beyond a typical head unit's internal amplifier. The amplifier covers a 20 Hz to 20 kHz frequency response range for full-range audio applications. Its signal-to-noise ratio is rated above 80 dB, while total harmonic distortion is specified below 0.5%.

Adjustable crossover controls help tailor the amplifier to the speakers and system role selected during installation. The variable high-pass filter adjusts from 50 Hz to 1.2 kHz, while the low-pass filter adjusts from 50 Hz to 500 Hz. A variable bass boost control provides adjustment from 0 to 12 dB.

The WZ1000.4 includes both high-level and low-level input options, allowing it to work with many factory or aftermarket source-unit setups. Low-level RCA connections can be used with a head unit that has preamp outputs, while high-level inputs offer an option for systems using speaker-level outputs. A remote bass control is included for accessible bass-level adjustment from the cabin.

Its compact published dimensions of 8.8 by 8.3 by 2.5 inches can simplify placement in many vehicle installations. The amplifier can serve as the main power stage for a four-speaker upgrade or as part of a more customized system using its crossover controls. Correct impedance matching, secure power wiring, and careful gain setup are important for dependable operation.

Key Features

• Four-Channel Class A/B Design: Provides four amplified channels for speaker-system upgrades.
• 2- and 4-Ohm Stability: Supports compatible speaker loads at either published impedance.
• 1000W Maximum Power: Supplies added amplification for multi-speaker vehicle audio systems.
• Variable Crossovers: HPF and LPF adjustments help match amplifier output to speakers.
• Bass Boost Control: Offers adjustable low-frequency emphasis from 0 to 12 dB.
• High- and Low-Level Inputs: Accommodates speaker-level or RCA signal connections.

Design & Installation

The WZ1000.4 uses a compact amplifier format measuring 223.5 mm long, 211 mm wide, and 64.5 mm high. Its published control set includes gain and crossover adjustments, high- and low-level inputs, speaker outputs, power connections, and a remote bass-control connection. Specific chassis material and fuse information are not published in the confirmed product specifications.

Mount the amplifier securely in a dry location with ventilation and room for wiring connections. Use speakers wired within the amplifier's stated 2- or 4-ohm operating range, and select high-level or RCA low-level inputs to suit the source unit. Set crossover points and gain conservatively during setup, then use the included remote bass control for convenient level adjustments.