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Two small green amplifier boards with volume knobs and power LEDs

AOICRIE LM386 2pcs 0.5-10W 3-12V live sound amplifier

SKU CH-WVJP-ZK8M5 MPN LM386

Two LM386 mini amplifier boards drive 0.5-10 W speakers from a 3-12 V supply with on-board volume control and power indicator

  • TypeLM386
  • Drives 0.5W to 10W speakers from DC 3V to 12V
  • On-board potentiometer gives precise volume control with power indicator
  • Quiescent current of approximately 2mA suits battery-powered projects
  • Two LM386 modules included for stereo or dual-zone audio
  • 5 mm audio input connects directly to common sources

Two-module amplifier kit

The AOICRIE LM386 kit provides two miniature amplifier boards built around the LM386 integrated circuit. Each board accepts a DC supply between 3 V and 12 V with a suggested minimum of 5 V. A 3.5 mm audio input and an onboard potentiometer give direct volume control. The modules are intended for hobbyists, experimenters and small audio projects needing simple mono amplification.

Low quiescent draw and flexible supply

Quiescent current sits at roughly 2 mA, making the boards suitable for battery-powered devices. The recommended supply is 5 V or higher, and the amplifier can drive speakers rated from 0.5 W up to 10 W with an 8 W unit suggested as optimal. A power indicator LED shows when the board is active, and the wide voltage range reduces the need for precise regulation in portable setups.

Compact boards for custom enclosures

Each module measures only a few centimetres across, so it fits inside tight project boxes, portable radios or tape-recorder restorations. The 3.5 mm jack simplifies wiring to common audio sources, while the through-hole potentiometer allows panel mounting for external volume knobs. Builders must supply their own speaker, power source and enclosure; the kit includes only the two amplifier boards.

Highlights

  • Drives 0.5W to 10W speakers from DC 3V to 12V
  • On-board potentiometer gives precise volume control with power indicator
  • Quiescent current of approximately 2mA suits battery-powered projects
  • Two LM386 modules included for stereo or dual-zone audio
  • 5 mm audio input connects directly to common sources

Specifications

BrandAOICRIE
TypeLM386

Questions about this item

How do I connect the LM386 module to a speaker and power source, and what step is often missed?

Solder speaker wires to the output pads and supply DC 3-12V to the power terminals, ideally 5V or above; the step often missed is adjusting the on-board potentiometer clockwise for volume after powering on.

What maintenance or replacement will the LM386 board need over time?

The board has no user-serviceable parts; if the LM386 chip or the potentiometer fails, the entire module is replaced rather than repaired.

What limit appears first when driving the LM386 continuously at high volume?

Thermal shutdown of the LM386 chip occurs first when driving a 0.5W-10W speaker near the 10W upper end on a 12V supply for extended periods.

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