Stereo Amplifier XH-A157 PAM8403 2 x 3 W Volume Control with Switch AUX Input 3.5 mm Power Supply 5 V Module 37 x 21 mm for Speakers
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The XH-A157 stereo amplifier with PAM8403 chip is a small dual-channel module that drives a pair of smaller speakers from a phone, computer, MP3 player, or other source with a headphone output. The sound is connected via a standard cable to the AUX jack 3.5 mm input, eliminating the need for soldering signal wires. The output power is 2 x 3 W and the module is designed for speakers with an impedance of 4 to 8 Ω. The volume is adjusted using a rotary knob, which also serves as a switch. The board is suitable for DIY enthusiasts, revitalising older speakers, and educational projects.
Power is supplied by a direct current voltage of 5 V, which connects via a red two-pin connector; it can be powered, for example, from a 5 V USB charger using an appropriate cable. Speakers connect to two white connectors for the left and right channels, using the included cables with connectors on one end and stripped wires on the other. Turning the knob to the right turns the amplifier on and increases the volume, while turning it to the left decreases the volume until it is turned off. The potentiometer 50 kΩ has a threaded shaft, allowing it to be secured to the front panel of the enclosure using the included nut and washer.
- Model – XH-A157
- Amplifier Chip – PAM8403
- Number of Channels – 2 (stereo)
- Output Power – 2 x 3 W
- Speaker Impedance – 4 to 8 Ω
- Power Supply Voltage – 5 V DC
- Audio Input – AUX jack 3.5 mm
- Control – rotary potentiometer 50 kΩ with switch
- Connections – connectors for power and both speakers
- Dimensions – 37 x 21 x 13 mm
- Operating Temperature – -20 to 85 °C
- Operating Humidity – 5 to 95 % RH
- Package Contents – 1 XH-A157 amplifier board with potentiometer, 1 knob, 1 washer, 1 nut, and 3 connecting cables with connectors
Before connecting the power supply, check the polarity according to the markings on the board and do not exceed the voltage of 5 V. Protect the module from moisture and conductive objects that could cause a short circuit on the underside of the board. For permanent installation, it is advisable to place the board in a plastic enclosure, where the knob with the nut holds it in place. Route the cables so that they are not taut and the connectors do not pull out during handling.
The XH-A157 amplifier is a practical solution for anyone looking to quickly revive passive speakers without complicated wiring. With dimensions of 37 x 21 x 13 mm, it can fit into a small cabinet or box for a home project. The combination of AUX input, switch knob, and cable connectors simplifies installation and later speaker replacement. This module will be appreciated by beginners in electronics as well as experienced DIYers when building simple audio setups.
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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How does it work?
- Email us at info@lunzo.ie with your order number and a description of the problem, and attach photographs or a video.
- 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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