Features and Details
High performance and stable operation: This 4-channel Class AB car audio amplifier delivers up to 4 × 200 W at 4 Ω / 4 × 400 W at 2 Ω (max.), delivering clear and stable sound even at high volumes. Enjoy rich and powerful sound in your car.
Crossfade channels for additional bass: The bridgeable channel feature allows you to combine the power of the subwoofers. This 4-channel car amplifier delivers deep, powerful bass without the need for an additional amplifier.
Crystal-clear sound quality: With low distortion (THD 0.1–0.15%) and a signal-to-noise ratio above 92 dB, this 4-channel amplifier delivers clean and precise sound—from deep bass to clear high frequencies with minimal distortion.
Effective heat dissipation: The aluminum alloy housing of the car stereo amplifier effectively dissipates heat from the internal components, ensuring more stable operation and a longer service life. The built-in fuse provides reliable current control for safe operation under various conditions.
Wide compatibility with vehicles: Designed to integrate easily into sedans, SUVs, pickup trucks, off-road vehicles, and sports cars. This 4-channel amplifier is compatible with nearly all 12-volt car audio systems.



This 4-channel car amplifier combines powerful performance with an aluminum construction that ensures rapid heat dissipation, delivering a clean, rich, and immersive sound on every trip. It makes long drives more enjoyable, reduces fatigue on the road, and enhances your in-car audio experience with long-lasting sound clarity and comfort.

Designed with advanced low-distortion technology, this 4-channel amplifier keeps music true and clear, ensuring vivid detail and smooth playback even at higher volumes.



Product Specifications
Product model number: MXAB400.4
Product Type: 4-channel amplifier
Functional class: Class AB
Foldable: yes
Rated voltage: DC 14.4 V
Maximum power: 4 × 200 W at 4 Ω / 4 × 400 W at 2 Ω
Frequency response: 10 Hz–30 kHz (-3 dB)
Distortion level: THD 0.1–0.15%
SNR: >92 dB
Color: titanium gray
Material: aluminum alloy
Product weight: 2.24 kg
Product dimensions: 340 × 210 × 54 mm