Hifonics BXX2400-1D 2400W Mono Car Subwoofer Amplifier

The Hifonics BXX2400.1D is a mono car amplifier designed to power a dedicated subwoofer system. Its single-channel layout concentrates its output on low-frequency reproduction rather than full-range speakers. It is intended for vehicle audio upgrades where a separate amplifier is needed to add stronger, adjustable bass capability.

This Brutus BXX-series amplifier is rated at 1 x 600 watts at 4 ohms, 1 x 1,200 watts at 2 ohms, and 1 x 2,400 watts at 1 ohm. The 1-ohm-stable design gives installers options when matching compatible subwoofer voice-coil configurations. A 10 Hz to 250 Hz frequency response and variable low-pass filtering focus the amplifier on subwoofer-duty frequencies.

The BXX2400.1D uses Super D Class topology with a PWM MOSFET power supply and Ultra-Fi MOSFET output devices. This design is built for efficient mono amplification while the aluminum heat sink helps manage operating heat. Low-noise pre-amplifier circuitry and nickel-plated RCA connections support a clean signal path from a compatible source unit.

Onboard controls allow the bass section of a system to be tailored to the vehicle and subwoofer enclosure. The variable low-pass crossover, subsonic filter, bass boost, and phase adjustment provide practical setup range without requiring an external processor for basic bass tuning. A wired remote bass-level control is included for adjustment from the driver area.

This amplifier is a fit for a system built around one or more subwoofers wired to a final load no lower than 1 ohm. RCA input and output connections make it suitable for systems using an aftermarket head unit or a separate signal-conversion solution. Its 0 AWG power and ground terminals, 10 AWG speaker terminals, and external 225A fusing specification should be considered during installation planning.

Key Features

• Mono 1-Ohm-Stable Design: Delivers dedicated power for a compatible subwoofer system.
• 2,400W at 1 Ohm: Provides the highest listed output at a 1-ohm load.
• Super D Class Topology: Uses efficient Class D-based mono amplification architecture.
• Variable Low-Pass Filter: Adjusts subwoofer output from 30 Hz to 250 Hz.
• Subsonic and Phase Controls: Helps tailor low-frequency operation to the enclosure and vehicle.
• Wired Bass Remote Included: Places bass-level adjustment within reach of the driver.

Design & Installation

The BXX2400.1D uses a classic aluminum Hifonics heat-sink design and molded, angled connections. Its nickel-plated RCA jacks and high-temperature, impact-resistant nickel-plated output connectors are designed for durable signal and wire terminations. Blue illumination indicates normal operation, while red illumination indicates a protection condition requiring installer attention.

Install the amplifier with a compatible RCA signal source, suitable subwoofer wiring, and a final speaker load from 1 to 4 ohms. The listed power and ground terminal capacity is 0 AWG, the speaker terminal capacity is 10 AWG, and the amplifier specifies external 225A fusing. Set the low-pass crossover, subsonic filter, bass boost, phase control, and gain carefully to match the connected subwoofer system.