GHXAMP TPA3116D2 Bluetooth Amplifier Board 50W*2 Bluetooth 4.2 Speaker Receive Board FM Radio USB Decoder WMA MP3 EQ Calls

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Product Details:
1.This is a support Bluetooth audio receiver, U disk; TF card player; FM radio; full-featured remote control;
2.USB decoding: Support WMA, MP3, WAV, FLAC lossless music file format;
3.Expansion interface: support for Bluetooth calls,
Board is a good test of the finished product board is welded, according to figure connected to a good speaker, audio input or connect the Bluetooth audio device and connected to the power can be used.
5 key function control:
[MODE] function conversion: U disk / TF card / Bluetooth / FM radio
[EQ] 5-level preset tuning (U disk / TF card playback is valid)
[VOL + / NEXT] Short press volume (+) / Long press to play the next song; Long press FM radio to select (+)
[PLAY / PAUSE] Play / Pause / Talk; Press and hold FM to select and save automatically
[VOL- / PREV] Short press volume (-) / Long press to play a song; Long press FM radio to select (-)
The main technical parameters:
Dimensions: 59 (W) x 96 (D) x 25 (H) mm, not including the switch socket protruding part
Operating voltage range: DC 10-25V (Current 3-4A, such as high power requirements 20-24V / 5-6A above)
Bluetooth receiving distance:> 8 m (meters) (barrier-free barrier to receive distance, such as the phone itself Bluetooth performance is not good, will affect the receiving distance)
U disk TF card disk: support FAT, FAT32 file system, does not support NTFS
Speaker impedance: 4-8Ohm,
Output Power:
12V / 8Ω speakers> 10W x 2; 12V / 4Ω> 15W x 2;
21V / 8Ω> 30W x 2; 21V / 4Ω = 50W x 2;
24V / 8Ω> 35W x 2; 24V / 4Ω> 60W x 2;
This is a real test data on the instrument, the output power and supply voltage and current, speaker impedance, the size of the input source. When the power supply voltage / current is sufficient, the power supply voltage is usually higher, and the relative output power can be larger. Different impedance speakers, the output power is also different, usually smaller speaker impedance power is also easier to do larger. Power requirements are particularly high pro, before taking the picture to understand the above parameters
Product questions:
1. Power amplifier board using a current sound, noise?
Our power amplifier, most of them are the use of DC power supply. The board itself does not produce current noise and noise,
The main reasons are:
A: with the power supply filter is not good, the current sound is the power or audio input is not normal
B: The quality of the input signal is poor, the output of the device connected to the input link is not normal, and the noise is caused by improper audio input
C: The quality of the input cable is poor, the cable is not properly connected, the cable is damaged, and the wiring is vacant
D: input connected to other playback devices, some devices share the power supply to cause noise
2.No sound, no sound in one channel?
A speaker is bad, speaker cable barrier
B, poor input cable connection, wiring damage, input connected to play the device output is not normal
3 .volume open big breaking sound, broken sound?
A. Insufficient power supply, wiring to confirm the correct wiring, supply current is sufficient
B. Speaker itself poor performance or damage, speaker power is too small or too large
C. Left and right channel speaker (+) (-) output is independent. Can not connect to each other
4. subwoofer amplifier volume open large speaker broken sound?
1. The lack of power, the line to confirm the correct wiring, power supply current is sufficient
2. The speaker's own power is too large or the audience, the speaker's bass performance is poor. The structure of the speaker box, this
These are not normal will cause broken sound
5. The volume of power is not enough?
Power and power supply voltage, the amplitude of the audio signal, the size of the speaker impedance has a relationship, any one will be less than shadow
Sound power
6. amplifier will burn it?
A: The positive and negative polarity of the power supply are reversed, the power supply voltage is too high, exceeding the working voltage of white paper
B: If the board requires the use of DC power supply is not directly connected to the AC adapter power supply (this need to add rectifier filter to
DC, it can be accessed)
C: to confirm the wiring is correct, connected to the power supply, wiring errors, short circuits, will cause damage to the key parts!

Package
1pc board
1pc remote control Board










Maximum Power Per Channel:
 50W
Model Number:
 TPA3116 2.0 Stereo Speaker amplifier Audio board
Package:
 Yes
Channels:
 2 (2.0)
Brand Name:
 GHXAMP
4-8OHM Speaker Audio Amplifiers:
 yes
Bluetooth calls:
 yes
Function conversion U disk, TF card:
 yes

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