92dB Input mode: AUX Channels: Dual Channel Amplifier Chip: TPA3118 Power Supply: DC 12-24V Note: 1. The higher the voltage does not necessarily mean louder sound. Only the correct power supply and compatible speakers can produce optimal sound quality. 2. The output power of the amplifier is determined by the power supply and speakers. 3. Our power amplifier input typically requires 1.5V2V. If your decoding output is 500mV1V, it is insufficient. Even with a compatible power supply and speakers, the amplifier output may not reach 2*30W. 4. 32Pin TPA3118 power amplifier chip. Adapter Horn: 48 ohms Output Power: 2*30W Color: Green Material: ABS Package Contents: 1 x Digital Stereo Audio Amplifier Board Note: Light reflection and different displays may cause slight color differences between the image and the actual item. Measurement error allowance is +/- 13 cm.