The module's anti-noise capability has been significantly improved, delivering clear, identifiable sound with minimal background noise and clean audio output. Features a dual-bridge power supply design, where each chip has an independent rectifier bridge and capacitor system, ensuring stable power delivery and improved channel separation for left and right channels. The white 3P socket is an industry-standard connector, compatible with external modules such as decoder boards and Bluetooth modules, offering wide application. The blue 3P terminal allows direct connection to pre-stage tuning boards, volume potentiometers, and similar components, enabling quick and convenient setup. For power supply, a 40W–80W dual power transformer with 11V–15V output is recommended. Do not exceed 15V, as higher voltage may damage the board due to its small to medium power design. It is advisable to measure the voltage before powering on. Product model: LM1875 dual-channel 2.0 stereo power amplifier board Power supply: dual power, 11–15V (do not exceed 15V) Output impedance: 4 ohm, 8 ohm Power output: 2 x 20W Advantages: high-quality materials, simple structure, efficient power amplifier circuit design, reliable performance, and broad compatibility Compatible with a 50W transformer for easy integration Color: black Material: ABS Dimensions: 68mm x 76mm Package includes: 1 x amplifier board Note: Package includes only the items listed above. Other accessories are not included. Lighting and display settings may cause slight color variations between the image and the actual item. Measurement tolerance: ±1–3cm.