Parameter:
Input power: voltage DC12-24V, current above 5A
Amplifier output: MAX 100W *2 / Max 50W*2 at 24V/4Ω
Speaker parameters: 4-8Ω; 20-100W
Input sensitivity: 800mV
Signal to noise ratio: >90dB
Frequency response: 20Hz -18KHz
Bare metal size: 103mm*88mm*30mm (not including the height of the knob seat cushion)
Package weight: about 335g
Packing size: about 160*155*73mm
Input power: voltage DC12-24V, current above 5A, power amplifier output: MAX 50W*2 @24V/4Ω
Speaker parameters: 4-8Ω; 20-100w
Input sensitivity: 800mV S/N ratio: >90dB
Frequency response: 20Hz -18KHz
Bare metal size: 103mm*88mm*30mm (not including the height of the knob seat cushion) Packaging weight: about 335g
Packing size: about 160*155*73mm
 
Instructions:
1. After receiving the product, please check whether the appearance is intact and whether the accessories are complete.
2. Connect the power amplifier output to the speaker or speaker, R connects to the right channel, L connects to the left channel (note the speaker pole
Don’t connect it backwards, the sound will be muddy if you connect it backwards).
3. Connect to the power supply (the power supply can only be connected to direct current, the voltage should not exceed 25V, nor should it be connected to the standard
Called 24V battery pack).
4. Turn the volume knob clockwise to turn it on, there will be a Bluetooth notification sound, and the blue light flashes at this time.
5. Choose the audio input mode that suits you to input audio. There are only three choices of audio input mode
One, it cannot be started at the same time. The audio input mode can be automatically recognized (automatically recognized with priority, USB input>AUX input>Bluetooth input), or manually switched (when multiple audio is connected at the same time, long press the pause/play button to switch the audio input mode) .
6. Rotate the volume knob, treble knob and bass knob to adjust the volume and treble and bass gain
To the right place.
7, quietly enjoy the happiness that music brings you.

common problem：
Q: All the wires are connected, why the indicator light is not on?
Answer: Turn the volume switch to turn it on. If it still does not light up after turning on, check whether the power supply is connected properly, and the power supply is positive
There is no connection. If everything is right, find a laptop power adapter (power supply should not exceed DC25V) or 12V battery power supply to determine whether it is a power supply problem or a product problem.
Q: Why is the sound broken or distorted?
Answer: 1. The power supply voltage is too low, the volume is adjusted too much, the power supply is insufficient, and the sound will be distorted. Suggest more
Change to a high-voltage power supply or turn down the volume.
⒉. The power supply is sufficient, but the speaker power is too small, which will cause the speaker to overload and break the sound. It is recommended to turn down the volume or replace with a higher-power speaker.
Question: Why does the volume knob do not move, but connect to a different sound source (such as first connect the CD and then change to the mobile phone) sound
The size is different?
Answer: If the volume knob is not moved, the sound magnification will not change. And the audio signal amplitude output by different playback devices
The value is different. For example, the mobile phone is usually 0.35mV, and the CD is 1V, and the sound level is naturally different.
Q: Why is there a loud current sound from the speaker?
Answer: The loud current sound in the speaker has a lot to do with the power supply. The output pattern of many power adapters on the market
If the wave is too large, it will interfere with the work of the power amplifier, and there will be a loud current noise. Use a 12V battery to test it. If the current sound is significantly smaller, it is a power supply problem. It is recommended to replace the power adapter with low output ripple or use a battery for power supply.
Question: Why does the audio output of the AUX audio input line be worse when one end of the AUX audio input line is connected to the product and the other end is not connected to the audio source?
Big hum?
Answer: When the signal line without shielding is used, the audio line is equivalent to the antenna and will receive electricity in the air.
The magnetic wave is then sent into the amplifier for amplification. If you hate this sound, it is recommended that you replace the shielded signal line or unplug the signal line.
 
Note!!!
1. Do not open the shell privately, as improper operation may damage the product.
2. Please use the switching power supply of a regular manufacturer, otherwise there is a risk of damage to the machine. 3. Do not use the machine in a high temperature and high humidity environment.
4. Before DIY, please make sure you have enough basic knowledge of electronics
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  • If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please contact us and double check the return address before you return it.
  • If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.

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