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5v功放芯片ichaiyang 2024-05-10 4:47 28
In general, the output power of a small power amplifier board (5V powered by USB is low, usually below a few watts. The 10W horn requires higher power to drive properly.When using...

5v small power amplifier board usb can drive 10w speaker?

In general, the output power of a small power amplifier board (5V) powered by USB is low, usually below a few watts. The 10W horn requires higher power to drive properly.

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When using a small power amplifier board to drive a 10W speaker, the following issues need to be noted:

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1. Power supply: USB usually provides low power and may not be able to meet the 10W horn power requirements. Consider using an additional power supply, such as an external DC power adapter.

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2. Drive capacity: The output power of the small power amplifier board may not be enough to provide sufficient current and power to the horn to achieve 10W power output. This can result in weak or distorted sound output.

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3. Impedance matching: The impedance characteristics of the horn need to be matched with the power amplifier board. If the impedance is not matched, it may cause the power amplifier board to overheat or damage.

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To sum up, the use of 5V small power amplifier board USB drive 10W speaker may have some problems, it is recommended to buy power amplifier board and speaker according to actual needs, and ensure that the power supply is sufficient, and impedance matching, in order to obtain the best audio performance.


In general, the output voltage and current of the 5V small power amplifier board insert USB is low, and it is usually unable to directly drive the 10W speaker. USB ports typically provide 500mA (2.5W) of current, while 10W speakers typically require higher power to function properly.

If you want to use a 10W speaker, you may want to consider using a more powerful amplifier board or using an additional power supply. Powerful power amplifier boards usually have higher output power and voltage, which can better drive high-power horns. In addition, you need to make sure that the connection between the speaker and the power amplifier board is correct and that the impedance of the speaker matches the power amplifier board.

It is recommended that you review the specifications and instructions for the small power amplifier board you are using to understand its maximum output power and applicable horn impedance range. If you are not sure how to choose the right amplifier board and speaker, please consult a professional or relevant audio equipment seller.


The 10w horn cannot be moved, because the power refers to the work that can be completed per unit time, if the 5w amplifier pushes the 10w horn, the horn cannot withstand so much power, which will cause the horn to be damaged or burned.

At the same time, the power mismatch will also affect the sound effect, unable to achieve the ideal sound quality performance.

It is necessary to select the horn and amplifier equipment with the matching power to ensure the sound effect and the long-term service life of the equipment.


Of course not, there is too much difference between the power amplifier and the speaker, and the power of the five-watt amplifier is too small to move the ten-watt speaker