1、Adopt TPA3118 for TI company as the main chip. 2、The power supply range is as wide as DC10-24V. 3、Under the condition of 24V power supply, the load of 2 ohms can reach 60W output. 4、The 60W output is limited to 2 ohms. The output power will drop at 4 or 6 ohms. 5、The circuit adopts PBTL mode for low impedance and high power. Features: 1. Adopt TPA3118 for TI company as the main chip. 2. The power supply range is as wide as DC10-24V. 3. Under the condition of 24V power supply, the load of 2 ohms can reach 60W output. 4. The 60W output is limited to 2 ohms. The output power will drop at 4 or 6 ohms. 5. The circuit adopts PBTL mode for low impedance and high power. 6. Large internal resistance speakers can be connected in parallel to achieve high power output. Specification: Product: Digital Audio Amplifier Model: XR-M311 Magnification type: Class D Work efficiency: 93% Chip Type: TPA3118 Input current: 3A recommended Output power: 60W*1 Frequency response range: 35HZ-88KHZ Number of channels: mono Impedance matching: 2-6 ohms Size: Approx. 55*40*15MM/2.17*1.57*0.59in Weight: 27g Package List: 1 * Amplifier Board