Belva BXA6404 640W Peak BX-Series 2-Ohm Stable 4-Channel Car Amplifier

Upgrade your car's audio performance with the Belva BXA6404 4-channel amplifier. Designed to bring clear, dynamic sound to everyday drives, this unit blends power with refinement in a compact package.

Power and clarity you can feel

Delivering a peak of 640 watts, the BX-Series amp channels 160W x 4 at 2 ohms or 320W x 2 when bridged at 4 ohms. In practical terms, you may notice tighter bass, cleaner highs, and responsive dynamics that respond as you push the volume button—without obvious distortion.

Designed for real-world car audio setups, this amp emphasizes dynamic headroom that can support a fuller, more immersive listening experience while you drive, cruise, or park at a car show.

Robust class A/B operation

Powered by a Class A/B topology, the design aims for low distortion and good efficiency. That balance can translate into smoother vocal tracks, more natural instrument textures, and a consistent sound profile across listening levels.

Stable at 2 ohms

Built to handle lower impedance loads, the amplifier stays reliable when wired to the typical 2-ohm or 4-ohm configurations used in multi-channel systems. This stability can help maintain solid imaging and a cohesive stage feel across the cabin.

Protection and reliability

Integrated protection circuits monitor temperature, overload conditions, and speaker shorts. This layered safeguarding helps guard the amplifier and connected components as you explore different tunes and listening environments.

Sound tailoring

• High-pass filter adjustable from 80 Hz to 1,200 Hz to cut low-end rumble when needed
• Low-pass filter adjustable from 50 Hz to 250 Hz to tighten sub frequencies
• Bass boost from 0 to 18 dB for extra punch in the right tracks

Three practical controls give you room to shape the sound to your car and speakers, helping you get the most from your setup without complicated tuning.

Easy installation and durable build

• Speaker-level inputs simplify integration with factory or aftermarket head units
• 50A fuse provides electrical protection and peace of mind
• PWM MOSFET power supply and a dedicated LED power/protect indicator support long-term reliability

With dimensions of 7.48" wide, 11.02" long, and 2.00" tall, the unit fits a wide range of vehicles while delivering serious power. The combination of compact form, robust build, and clear indicators helps installers and enthusiasts alike.

A practical choice for modern car stereos

Whether upgrading an existing system or building a new one, the Belva BXA6404 offers a balanced mix of power, control, and protection that suits many common configurations.