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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
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Description
HKD PAM8403 AUD AMPMicro Digital Amplifier Board 2 3W Class D PAM8403 Micro Digital Amplifier Board Features Can use 5V battery or any USB port to power. D class amplifier is highly respected today because its 90% high efficiency. A class, B class amplifier efficiency is only about 30%. Temperature does not affect the sound quality so no need to add heat sink therefore less space is taken. Module has a short circuit current protection and over temperature protection.
Micro Digital Amplifier Board 2 3W Class D PAM8403
Micro Digital Amplifier Board
Features
- Can use 5V battery or any USB port to power.
- D class amplifier is highly respected today because its 90% high efficiency. A class, B class amplifier efficiency is only about 30%.
- Temperature does not affect the sound quality so no need to add heat sink therefore less space is taken.
- Module has a short-circuit current protection and over-temperature protection.
- Noise canceling circuit was built in, power on / off without pop noise.
- Can provide 3W (left channel) + 3 W (right channel) output power in the 4Ω load and 5V power supply conditions.
Specifications
- User: Audio Module,mini digital amplifier
- Super Mini Size: 1.85 x 2.15cm
- Input voltage: 2.5-5V (can not be more than 5.5V, otherwise it will burn the IC on board)
- Output power: 2 channels x 3W
- Speaker Choice: It can work with 4 ohm and 8 ohm speakers, recommend 4 ohms.
- Net weight : 1g
Additional Information
| Device | Amplifier Board |
| Type | Micro Digital |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Great filter
Size: AF259
This fit my Mazda CX-5 perfectly. I'm happy with the seal and quality. Great price. I will certainly reorder for my next replacement.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 5
Great fit and quality
Size: AF113
Not a complicated product, but after going to 2 different auto parts stores and this not being in stock, Amazon to the rescue. Arrived the next day and the quality is definitely on par with “store brand” ones from retailers. Definitely cheaper as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
★★★★★ 5
Fit my 2014 Accord perfectly
Size: AF476
Seems to be the same quality as OEM. Fit perfectly. Easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 4
Affordable priced. Fits well
Size: AF377
They work good in my 2019 Toyota RAV4
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
★★★★★ 5
Perfect fit, slid right into place and locked like it should
Size: AF943
Wanting to correct my previous review (I reviewed the incorrect item). This product fit perfectly in my vehicle- my apologies for the first review; perhaps Amazon or the vendor can replace the first review with this one. I am very pleased with this item.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
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