INDIAN PCB 2CH PT2399 Echo Amplifier Board 4.5V-5.5V Audio Circuit Board for Subwoofers, DIY Sound Projects

This 2CH Echo Board PT2399 Amplifier Circuit is engineered for high-quality audio performance. It supports dual or bridge connection modes with an output power up to 5W, making it suitable for subwoofer or speaker enhancement. Designed for a power input range of DC 4.5V to 5.5V, it features high channel separation and minimal external components. Thermal protection ensures durability and safe usage during extended operations. Ideal for audio system upgrades and DIY electronics projects.