PAM8403 Stereo Amplifier Set of 2 Modules 2 x 3 W Volume Control Potentiometer with Switch Power Supply 5 V Board 27.9 x 19.9 mm for DIY
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The package includes two separate stereo amplifiers with the PAM8403 chip, each delivering a power of 2 x 3 W to a pair of small speakers. The set is ideal when you want to power two devices simultaneously or have a second module on hand as a backup for another project. The modules are powered by low voltage, so a standard 5 V power supply, such as from a computer USB port or charger, is sufficient. Each board has a directly mounted rotary potentiometer, allowing you to smoothly adjust the volume of both channels. The green printed circuit boards are small and easily fit into cramped enclosures.
The wiring is straightforward and can be handled by a beginner with a soldering iron. On the edge of the board, there are soldering points for power supply +5 V and ground, for audio input of the left and right channels with a common ground, and for the outputs of both speakers. The potentiometer has a built-in switch, so by turning the knob to the stop, you can turn off the amplifier, and by turning it further, you can turn it back on and increase the volume. The board is equipped with a filtering capacitor that smooths the power supply voltage. The amplifier operates in class D, so it does not overheat during normal operation and does not require a heatsink. The board does not have its own connectors; wires are connected by soldering, ensuring a strong and reliable connection even in moving products. The audio signal can be fed from the headphone output of a phone, computer, MP3 player, or another audio module.
- Chip – PAM8403, class D amplifier
- Power – 2 x 3 W, two channels (stereo)
- Power Supply – 2.5 to 5 V, for example from USB
- Control – rotary volume potentiometer with switch
- Input – left and right channel with common ground
- Output – two speakers, left and right channel
- Board Dimensions – 27.9 x 19.9 mm
- Package Contents – 2 pcs PAM8403 stereo amplifiers, each with a mounted potentiometer
The module is suitable for building your own active speakers for a computer, for powering children's toys, doorbells, voice modules, or simple radios. Connect the speakers directly to the outputs of the board and always disconnect the power supply before soldering. Protect the board from moisture and short circuits; ideally, place it in a plastic enclosure. When soldering wires, work with a slightly heated soldering iron and keep the joints short to avoid unnecessary noise. For the best results, use speakers whose power matches that of the amplifier, and a power supply with a sufficient current reserve.
This set of two PAM8403 amplifiers will cover two projects at once without the need for an additional order. Thanks to the power supply of 2.5 to 5 V, you can connect each module to a USB charger, power bank, or computer. The potentiometer with switch replaces a separate button and volume control. The small boards are easy to integrate into your own enclosures or old speakers. It is a cost-effective choice for DIY enthusiasts building multiple audio devices.
Delivery
Delivery to address€1.99
Estimated delivery: 23 November – 4 December
Shipped from China
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About the seller
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Seller:
Yongkang Yongchang Electric Tools Co., Ltd
Address: West side, 3rd Floor, No 27, Zerong Road, Dahou Village, Tangxian Town, Jinhua City, Zhejiang, China
E-mail: 297288217@qq.com
Telephone: +86 135 6007 1153
Manufacturer:
Yongkang Yongchang Electric Tools Co., Ltd
Address: West side, 3rd Floor, No 27, Zerong Road, Dahou Village, Tangxian Town, Jinhua City, Zhejiang, China
E-mail: 297288217@qq.com
Telephone: +86 135 6007 1153
EU responsible person:
EU Consulten Srls
Address: Via Varesina 55, 20156 Milano, Italy
E-mail: Eu-consultenSrls@hotmail.com
Telephone: +39 328 583 2654
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