Set of 3 XH-A157 PAM8403 Stereo Amplifiers 2 x 3 W Volume Control Knob with Switch AUX 3.5 mm Input 5 V Power Supply Sound Modules
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The set includes three XH-A157 stereo amplifiers featuring the PAM8403 chip, allowing you to power multiple projects simultaneously or keep a spare module on hand. Each board receives audio via the AUX jack 3.5 mm input from a phone, computer, MP3 player, or another source with a headphone output. The output power of a single module is 2 x 3 W for a pair of speakers with an impedance of 4 to 8 Ω. Volume is controlled for each unit with a rotary knob that also turns the power on and off. This set is ideal for workshops, electronics clubs, and for repeated constructions of smaller speaker enclosures.
Power is supplied by a direct current voltage of 5 V, which connects via a red two-pin connector; the modules can be powered from a 5 V USB charger using a suitable 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 powers 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 with 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 – 3 XH-A157 amplifier boards with potentiometer and for each 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 they are not taut and the connectors do not pull out during handling.
The set of three XH-A157 amplifiers is a cost-effective choice for DIY enthusiasts building multiple devices or wanting to have spares for future projects. Each module measures 37 x 21 x 13 mm and fits into a small enclosure. The AUX input, knob with switch, and cable connectors simplify assembly without unnecessary soldering. The modules are useful for building computer speakers, powering toys, or in teaching the basics of electronics.
Delivery
Delivery to address€1.99
Estimated delivery: 23 November – 4 December
Shipped from China
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Returns addressQX-BOX AEMALL RETURN
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28070 Alcala de Henares, Madrid
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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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