Gravity Audio E7500.1D Warzone 7500W Mono Amplifier

The Gravity Audio E7500.1D Warzone is a Class D mono amplifier designed to power a dedicated subwoofer system. It delivers rated RMS output at 1-, 2-, or 4-ohm loads, giving installers flexibility when matching compatible subwoofers and wiring configurations. This is a purpose-built bass amplifier rather than a multi-channel amplifier for full-range speakers.

At its rated 1-ohm load, the E7500.1D is specified for 7,500 watts RMS. Its lower-impedance capability makes it suited to high-output subwoofer installations that require substantial continuous power. Proper system design, speaker matching, and electrical-system capacity are important for using an amplifier of this output level.

The amplifier uses Class D operation and a MOSFET pulse-width-modulated power supply. This design approach is intended to provide efficient power conversion in a compact monoblock chassis. A proprietary heat-dissipation design is also specified to support operation during demanding playback.

A remote bass-control knob is included, allowing the subwoofer output level to be adjusted from the listening position. This can be useful for tailoring bass level between different recordings or listening preferences without changing the main system settings. The control is intended for level adjustment, not as a replacement for correct gain setup.

The E7500.1D fits into a system built around compatible subwoofers wired to a final load of 1, 2, or 4 ohms. Its protection circuitry monitors high voltage, low voltage, overcurrent, and high-temperature conditions. For safe installation, use appropriately sized power wiring, a correctly rated fuse near the battery, solid grounding, and professional setup where needed.

Key Features

• 7,500W RMS at 1 Ohm: Provides high continuous output for compatible subwoofer systems.
• Class D Monoblock Design: Focuses amplifier power on a single bass channel.
• 1/2/4-Ohm Operation: Supports several compatible subwoofer wiring configurations.
• MOSFET PWM Power Supply: Supports efficient conversion of vehicle electrical power.
• Remote Bass Knob Included: Lets the listener adjust bass output level remotely.
• Four-Way Protection: Helps protect against voltage, current, and thermal faults.

Design & Installation

The E7500.1D uses a compact chassis format for a high-output mono amplifier. Its specified engineering includes a MOSFET pulse-width-modulated power supply and a proprietary heat-dissipation design. The manufacturer also specifies protection for high voltage, low voltage, overcurrent, and high-temperature conditions.

Install the amplifier in a securely mounted, ventilated location and wire compatible subwoofers only to a final 1-, 2-, or 4-ohm load. The vehicle electrical system, charging system, power cable, ground cable, fuse protection, and speaker wiring must be selected for the amplifier's intended output. Have gain, crossover, and remote-level settings configured carefully to match the connected equipment.