【High-Performance Chip】This subwoofer amplifier board uses TPA3118 as the main chip, the power supply voltage range is 10-24VDC, and the frequency response range: 35Hz-88kHz.【60W Output】The subwoofer power amplifier board circuit adopts the PBTL mode to achieve low impedance and high power, impedance matching: 2-6 ohms, using 2 ohm audio equipment to achieve 60W output under 24V power supply.【Improve Performance】The subwoofer power amplifier board supports parallel high internal resistance audio equipment to obtain high power output and improve equipment performance.【Wide Range Of Applications】This mini digital audio power amplifier module is widely used in TVs, monitors, notebook computers, portable speakers, DVD players, etc.【Quality Service】If the product has any quality problems or you have any questions about this product, you can contact us at any time,we have a 24-hour online professional customer service team.we will try our best to solve your problem in time,please rest assured to buy. Specification: Model: XR-M311 Amplification type: Class D Work efficiency: 93% Chip Type: TPA3118 Supply voltage: DC10-24V Input current: 3A recommended Output power: 60W*1 Frequency response range: 35Hz-88kHz Number of channels: Mono Impedance matching: 2-6 ohm Size: 55*40*15mm / 2.16*1.57*0.59in Weight: Approx. 30g/1.06oz Package List: 1 * Digital Amplifier Board Note: 1. Due to the difference between monitors and light effects, the pictures may not reflect the actual color of the item. 2. Please allow slight error due to manual measurement. Thanks for your understanding.