Stereo Class D Audio Amplifier — Clear, efficient power for small speaker systems Key benefits Efficient amplification: Class D (PWM modulation) design delivers efficiency and lower heat compared with linear amplifiers, making it suitable for compact or enclosed installations. Wide input voltage tolerance with protection: Operates across DC 6–15V with builtin protection, so it accepts common supply sources while guarding against outofrange conditions. Optimized for 12V systems: Recommended voltage DC 12V matches typical automotive and portable power supplies for reliable performance. Measured output power: Provides 10 W × 2 into 8 Ω and 15 W × 2 into 4 Ω speakers, giving usable stereo drive for small to medium loudspeakers. What it does and how it solves problems Provides twochannel stereo amplification for driving pair of speakers with clear, efficient power delivery. Reduces thermal and powerusage issues common with linear amplifiers thanks to Class D PWM topology, helping installations where space and cooling are limited. Handles a wide range of DC supplies with protection, making the module tolerant of voltage fluctuations and simplifying integration with 12V systems. Compatibility and performance Power supply: DC 6–15V (with protection). Recommended operating voltage: DC 12V. Speaker load: Designed for both 8 Ω and 4 Ω speakers, delivering 10 W per channel at 8 Ω and 15 W per channel at 4 Ω. Operation: Class D amplifier using PWM modulation for efficient power conversion and reduced heat generation. Practical considerations Use with a regulated 12V supply where possible for balance of output and reliability. Match speaker impedance to the specified 4 Ω or 8 Ω ratings to achieve the stated output power and avoid overloading. Suitable for installations where compactness and efficiency are priorities, and where a protected supply range is required. Typical applications Desktop or bookshelf audio: Drive a pair of compact stereo speakers for computer or small room audio systems. Automotive and 12V projects: Add stereo amplification to car audio upgrades, dashmounted media players, or other 12Vpowered projects. DIY audio and embedded systems: Integrate into hobby builds, portable speaker enclosures, or custom electronics where efficient, protected stereo amplification is needed. Technical summary Working mode: Class D (PWM modulation) Power supply range: DC 6–15V (protection) Recommended voltage: DC 12V Output power: 10 W × 2 (8 Ω), 15 W × 2 (4 Ω) If you need a compact, efficient stereo amplifier with a protected DC input range and reliable output for 4 Ω and 8 Ω speakers, this Class D module provides a practical solution for small audio systems and 12V applications.