Gravity GR4000.1 Monoblock 4000W Car Amplifier

The Gravity GR4000.1 is a monoblock car amplifier engineered to drive subwoofers with substantial power. Built around four Class AB high-current dual discrete drive stages and a MOSFET PWM power supply, it is rated for a maximum output of 4000 watts and operates stably down to 1 ohm impedance. This low-impedance stability gives installers flexibility to wire subwoofers in parallel configurations that extract the most power from the amplifier. Bridgeable and tri-mode operation options further expand system design possibilities, whether powering a single large subwoofer or multiple drivers.

Onboard signal processing includes continuously variable 12dB/octave high pass and low pass crossovers along with a dedicated subwoofer variable crossover, allowing precise control over which frequencies reach your subwoofers without requiring a separate signal processor. An enhanced variable bass boost of up to +12dB at 50Hz lets you dial in additional low-end emphasis to taste. The included remote bass knob mounts within reach of the driver's seat for on-the-fly level adjustments. Protection is handled by soft start and muting circuitry combined with overload, thermal, and short circuit safeguards, helping to keep the amplifier and connected speakers safe under demanding conditions.