2.1 Audio Amplifier Board 30W*2+60W TPA3118 Class D AUX BTL Stereo Amplifier for Active Speaker DIY

Feature: This product is a new arrival, with a new design and more innovation. The use of an alternative low-pass filter circuit makes the bass output frequency response more reasonable and the sound more shocking. Each channel uses a separate new imported digital chip. And the output mode of the chip is BTL bridging mode, so that the output power doubles when the amount of materials is basically unchanged. Specification Product Name: TPA3110 D2 amplifier board Chips:TPA3110D2 and TPA3118D2 Working Voltage: 12-24V Working Current: 4A or more Work efficiency: equal or more than 90% Maxmium Power: 30W * 2+60W Output impedance: 8Ω(4Ohm and 6Ohm also can work) Version:V4.1 Receiving Distance:10m Input Signal:+AUX Net Weight:60g Packaging Including: 1xPC Amplifier Board Product Questions 1. Amplifier board has current sound and noise when use Most of our amplifier board use power supply. The board itself does not produce current sound and noise. The main causes of current acoustic noise are: A, The power supply filter used is not good; the current sound is caused by wrong input by the power or audio input. B, The input signal quality is poor; the output of the device connected to the input is improper, and the noise is caused by the abnormal input of the audio source. C, The input cable is of poor quality; the line is in poor connect; the wiring is damaged; the wiring is suspended D, The input connection has other playback devices, and some devices share the power supply to cause noise. 2. No sound output, no sound in 1 channel? A, The speaker is broken, or the speaker cable is not connect well. B, The input cable is not in good connect; the wiring is damaged; the output of the device connected to the input is improper. 3. Volume broken and breaking sound when turn loud? A, The power input is insufficient, confirm the wiring is cor

• This product is a new arrival, with a new design and more innovation.
• The use of an alternative low-pass filter circuit makes the bass output frequency response more reasonable and the sound more shocking.
• Each channel uses a separate new imported digital chip.
• And the output mode of the chip is BTL bridging mode, so that the output power doubles when the amount of materials is basically unchanged.
• Product Name: TPA3110 D2 amplifier board