500W Single-Channel Amplifier Board — DC20V 90V Wide Voltage, Double Differential A970/C2240 — For 15inch Speakers

High-power 500W amplifier board designed to drive 15inch speakers with professional-level performance. Delivers stereo output using robust A1943/C5200 power transistors for clean, reliable reproduction. The front-end uses a double differential A970/C2240 topology paired with an A1145/C2705 voltage amplification stage to maintain low distortion and accurate dynamics. Operates across DC20V 90V to provide flexible integration into a variety of systems. Built with a modular monoblocks layout and A1837/C4793 power transistors to ensure thermal stability during prolonged high-volume use. Suited for audiophiles and enthusiasts building home theaters, power stereo systems, live music rigs, or immersive home cinema setups where distortion-resistant, studio-grade amplification is required.