The HW-304 is a high-efficiency Class D stereo amplifier board based on the TPA3116D2 chipset. It is designed to provide robust audio performance for DIY speaker systems, desktop amplifiers, and portable audio projects.

Specifications

• Amplifier Chip: TPA3116D2 (or equivalent CS3835E0)
• Operating Voltage: DC 5V to 24V
• Output Power: 50W x 2 (Stereo)
• Channel Count: Dual Channel (Stereo)
• Signal to Noise Ratio: 100dB
• Frequency Response Range: 20Hz-20KHz
• Output Match: 4-8 ohm

Features

• Equivalent IC Support: Some versions of this module may feature the CS3835E0 chip, which is a functional equivalent to the TPA3116D2, offering comparable performance and reliability.
• High Power Density: Delivers up to 50W per channel in a very compact footprint, suitable for driving a wide range of passive speakers.
• Wide Voltage Compatibility: Operates across a broad 5V to 24V range, making it compatible with USB power (at lower output), 12V batteries, or 24V industrial power supplies.
• Integrated Volume Control: Features an onboard potentiometer for easy and precise manual volume adjustment.
• Advanced Protection: Includes comprehensive hardware protection against overvoltage, undervoltage, overheating, DC detection, and short circuits.
• Class D Efficiency: Provides over 90% power efficiency, ensuring the module stays relatively cool even during extended high-volume playback.
• Premium Filtering: Uses high-quality inductors and capacitors to filter out high-frequency switching noise and provide clear, high-fidelity audio output.

Common Applications

• Building custom 2.0 channel desktop or bookshelf speakers.
• Upgrading older passive audio equipment into active systems.
• Portable audio "boombox" projects powered by 12V or 24V battery packs.
• Sound reinforcement for kiosks, arcade machines, or DIY media centres.