Sell 1Pc Tpa3116D2 100W 8-25V High-Power Subwoofer Mono Digital Board Power Amplifier E8Y4 best price

100% brand new and high quality features: digital power amplifier can be used as a standard monaural power amplifier board or a subwoofer power amplifier board, with pre-amp ne5532 buffer matching. turn the knob left to the bottom is the shutdown state. high-performance power amplifier chip, dc single power supply 8-25v wide working voltage, 50w (left channel) + 50w (right channel) dual-channel output, efficiency up to 90% or more. can use switching power supply, laptop switching power supply, battery or car power supply, etc. only when the voice frequency input is sufficient and the power supply voltage/current is sufficient, will there be sufficient output power. the higher the power supply voltage, the higher the relative power, and speakers with different impedances will have different output powers. in the case of sufficient voltage and current, the larger the horn ohms, the smaller the relative sound power. the higher the voltage, the greater the current, and the more adequate the output power. if there is only 12v 1a power supply, you can use 3~4 inch speakers; if the power supply has 19v 5a or more, you can use 8-10 inch speakers. specifications: material: plastic + silicon power interface: standard 5.5mm power jack power supply range: 8-25v size: app.79x62mm/3.11x2.44in color: as pictures shown quantity: 1pc note: please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. due to the difference between different monitors, the picture may not reflect the actual color of the item. thank you! package includes: 1 x digital power amplifier board (other accessories demo in the picture is not included.) hello, guys, thank you for visiting my store. Dear buyer,Welcome to our store. Thank you for your attention, Thank you for your support!Welcome to buy from us!