PAM8403 Stereo Amplifier Module 2 x 3 W Volume Control Potentiometer with Switch Power Supply 5 V Board 27.9 x 19.9 mm Green for Speakers
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This compact stereo amplifier is built on the PAM8403 chip and delivers 2 x 3 W to two small speakers. It is suitable for home projects where you need to amplify a computer, portable speaker, toy, or simple player. The module operates on low voltage, so a standard 5 V power source, such as from a computer USB port or charger, is sufficient. The board features a directly mounted rotary potentiometer, allowing you to smoothly adjust the volume of both channels simultaneously. The green printed circuit board is small and easily fits into cramped enclosures.
The connections are straightforward and can be handled by a beginner with a soldering iron. At the edge of the board, there are soldering points for power +5 V and ground, for audio input of the left and right channels with a common ground, and for the outputs to both speakers. The potentiometer has a built-in switch, so by turning the knob to the limit, you can turn off the amplifier, and with another turn, you can turn it back on and increase the volume. The board is equipped with a filter capacitor that smooths the power supply voltage. The amplifier operates in class D, so it does not heat up excessively during normal operation and does not require a heatsink. The board does not have its own connectors; wires are connected by soldering, ensuring a firm 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 – 1 piece of PAM8403 stereo amplifier with mounted potentiometer
The module is suitable for building your own active speakers for a computer, for amplifying children's toys, doorbells, voice modules, or simple radios. Connect the speakers directly to the board outputs and always disconnect the power before soldering. Protect the board from moisture and short circuits, ideally placing it in a plastic enclosure. When soldering wires, use a slightly warmed 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 sufficient current reserve.
The PAM8403 stereo amplifier is a simple way to give voice to small speakers without a large and expensive amplifier. With a power supply of 2.5 to 5 V, you can connect it to a USB charger, power bank, or computer. The potentiometer with switch replaces a separate button and volume control. The small board is easy to integrate into your own enclosure or an old speaker. It is a practical component for anyone who enjoys building their own audio devices.
Delivery
Delivery to address€1.99
Estimated delivery: 23 November – 4 December
Shipped from China
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Returns and Exchanges
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Returns30 days to return without giving a reason
Withdrawal period30 days from receipt of the goods
Deadline to send the goods backWithin 14 days of withdrawing from the contract
Return shipping costsYou pay the postage for sending the goods back to Spain. With An Post (Standard Post), returning a parcel of up to 2 kg to Spain costs about €30. We charge no other fee.
RefundWithin 14 days of your notice of withdrawal, using the same payment method you used for the purchase. If you return the whole order, we will also refund the delivery cost.
Crediting of the amountUsually 2–10 working days, depending on the payment method
Product conditionYou may unpack the goods and try them as you would in a shop, and you can return them even without the original packaging
Returns addressQX-BOX AEMALL RETURN
Rotonda Rene Descartes, Parcela 101 – Nave 3
28070 Alcala de Henares, Madrid
SpainReturns centre in Spain operated by Qxbox, an e-commerce logistics provider and logistics partner of the sellers on our platform.
How do I return goods?
- Email us at info@lunzo.ie with your order number and the items you are returning.
- Pack the goods and send them by post to the returns address in Spain.
- Send us the proof of dispatch with the tracking number – this lets us refund you without waiting for the parcel to arrive.
Faulty goodsUp to 6 years to claim for faulty goods
Did the goods arrive damaged, do they not work, is something missing from the parcel or do they not match the description? We will sort it out.
Period for claiming a faultUp to six years from delivery of the goods
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- We will assess it and suggest a solution. Photographs are usually enough – please do not send the goods back until you have received instructions from us.
- We will settle your claim within 30 days at the latest – with a new item, a price reduction or a refund.
If the goods need to be sent back, we will refund the postage for a valid claim (just provide the receipt).
ExchangesA different size, colour or variant
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If the variant is available, we will send you instructions for the exchange. You pay the cost of sending the original item back; the new variant will be sent to you at no further charge.
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About the seller
This product is sold and shipped by an external seller. LUNZO guarantees you a safe purchase: online payments go through a secure payment gateway, and you handle your order, returns and complaints with us.
The following information has been provided by the product seller, who is responsible for its accuracy. The seller acts as a trader.
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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