Mini Digital Power Amplifier Board 2x3W Class D Audio Module USB DC 5V PAM8403
Can use the computer USB port 5V power supply or using a mobile phone charger USB port 5V power supply
Battery power can also be used
High efficiency: 90%
Can provide 3W (left channel) + 3W (right channel) output power in the 4Ω load and 5V power supply conditions
A class, B class amplifier such efficiency is only about 30%
D class amplifier is highly respected today
D class amplifier efficiency is extremely high, not because of temperature affect the sound quality
But do not add heat sink and take less space noise cancelling circuit was built in the amplifier board
Power on / off without pop noise
Module has a short-circuit current protection and over-temperature protection
Specification:
Operating Voltage: 2.5V ~ 5.5V
Speaker With: 4Ohm ~ 8Ohm (recommended: 4Ohm)
Speaker Power: 2W ~ 8W
Size: 21 x 18 x 3.4mm (L x W x H)
Net Weight: 1g
Application:
LCD TVs, monitors
Laptop
Portable Speakers
Portable DVD players, game consoles
Phone / speakerphone
Note:
First turn OFF and then powered speakers , or likely to cause damage to the chip;
Because digital volume control module has a great gain , so do not let too much leaving the audio signal input signal cut limiter.
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- Reviews (29)
- All(29)
- Q & A
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: Where is the origin of Elecbee products? Are they certificated?2023-03-03
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Answer:
Elecbee has long-term cooperation agreements with the OEM factories in China. So that we are able to reduce the intermediate channel cost, and help you save money. Our products are all made strictly according to the relative global standard, to ensure the products have good compatibility and excellent quality.
2023-03-03
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: What forms of payment do you accept?2023-03-03
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Answer:
Our main payment methods include Paypal, Credit Cards, Debit Cards, Bank Transfer, and more to discover. Please choose the payment methods in your favor.
2023-03-03
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: When will you arrange shipment?2023-03-03
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Answer:
After confirming receipt of your payment. We will arrange the delivery as soon as possible and upload the courier number to the website for you to track.
2023-03-03
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: How to exchange or return?2023-03-03
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Answer:
1. You can apply to return within 30 days after receipt of the goods. Please make sure the outside package is intact, and the product is in its original condition. We will arrange your refund according to the relevant provisions once the package is received.
2. Return process: You Apply for a Return - Approve the Return - Arrange a Return - Receive the Products and make Inspection - We arrange a Refund;
3. We will bear the freight charges for returns caused by us, for instance, the quality problem. As to returns caused by the buyer, the buyer should be responsible for the shipping fee.
2023-03-03
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