Bảng mạch khuếch đại kỹ thuật số mô-đun 12‑24V HIFI 2.1 loa siêu trầm công suất cao

Feature:
1. 12‑24V DC single power supply, using for TI TPA3116D2 high‑performance digital power amplifier chip as the core
2. One piece is used for parallel bridged bass channel power amplifier output, the other piece is used for left and right channel power amplifier output. Can support 100W(bass channel) + 50W(left channel) + 50W(right channel) three‑channel output
3. Equipped with external audio source input interface, with preamplifier, bass frequency division processing; bass volume, bass frequency, left and right channel volume, treble, switch/total volume 5 adjustment potentiometers
4. Come with wide working voltage and power saving designs, efficiency up to 90% or more
5. Can use good performance switching power supply, laptop switching power supply, charging bottle, or car power supply

Specification:
Item Type: Digital Amplifier Board
Operating Voltage Range: DC 12-24V (current 3-4A, or 19-24V/4-5A, if the power requirement is high, more than 20-24V/8-9A)
Audio Input Sensitivity: 600-800mV
Frequency Response Range: 20Hz-20KHz
Speaker Impedance:
Left and Right Channels: 4-8 Ohms, bass channel: 2-8 ohms
Functional Operation Instructions:
1. The power can be connected from DC socket 1 or terminal block 2.
2. Audio can be from 3.5mm socket 1, or 3P socket 2 audio input interface, such as: computer, MP3 player, etc.
3. The bass volume potentiometer can independently adjust the bass output volume.
4. The left and right channel volume potentiometer can adjust the left and right channel output volume at the same time.
5. Treble adjustment potentiometer, adjustable left and right channel treble gain output.
6. Switch/total volume potentiometer, with switch to turn off the power amplifier/can also adjust the bass and left and right channel output volume at the same time.
The total volume potentiometer is shipped with switch by default.

Package List:
1 x Digital Amplifier Board1 Pack of Accessories

Note:
1.If an alternating current (AC) transformer power supply is used, it must be converted into a direct current (DC) power supply with rectification and filtering.
2.The DC no‑load voltage should not be greater than 25.5V(this is very importan