Features 1、Advanced Configuration: This Class A analog circuit power amplifier board adopts two 15W stereo speakers and 2 pairs of professional chips, trying to give you a better experience. 2、Self Protection Function: This circuit power amplifier board has short circuit and thermal protection as well as overvoltage, undervoltage and DC protection to prevent complete failure. 3、Clear Sound: Equipped with professional configuration, low noise, comes with a warm and soft sound, will not destroy the original sound quality, use it with confidence. 4、PCB Board: This circuit power amplifier board is made of PCB board, durable and reliable, it has a long life span. 5、Ideal Replacement: This circuit power amplifier board can be easily installed, ideal replacement for the old and damaged parts. Specification Item Type: Circuit Power Amplifier Board Material: PCB Color: Green, Silver Type of Function: Amplify Audio Chip Type: Analog Chip Chip model: TIP41C, TIP42C Supply Voltage: DC24V2A Output Impedance: 4Ω Number of Channels: 2 Channels Usage: for Active Speakers Package List 1 x Circuit Power Amplifier Board