Description

PAM8403 5V Audio Amplifier Board – Mini Stereo Power Amplifier Module

The PAM8403 audio amplifier board is a compact and efficient 5V digital stereo amplifier module designed for DIY audio systems, portable speakers, and electronic projects. It delivers high-quality sound output with low noise and stable performance.

This series includes both standard version and volume knob version, allowing users to choose between simple installation or enhanced sound control.

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Key Features

• High efficiency PAM8403 digital amplifier chip
• 5V USB / DC power supply compatible
• Stereo 3W + 3W output
• Low noise and high signal clarity
• Compact mini size for portable projects
• Optional volume knob control version

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Two Versions Available

Standard PAM8403 Basic Version

A simple plug-and-play amplifier board suitable for basic DIY audio projects, Arduino systems, and compact speaker builds.

PAM8403 Mini Audio with Knob

Upgraded version with integrated volume control knob, allowing real-time sound adjustment for better user experience.

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Learn More

For practical usage demonstration and wiring setup, you can refer to DIY audio amplifier build tutorials video, click the following links.

https://www.youtube.com/shorts/61n7nWHfh5o

https://www.youtube.com/watch?v=cxjJA97CO2o

You may also be interested in other products.

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Applications

• DIY Bluetooth speakers
• Arduino audio projects
• Computer / laptop external speakers
• Educational electronics kits
• Small home audio systems

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Compatibility

The PAM8403 5V audio amplifier board with most 4Ω–8Ω speakers and supports standard 5V power input via USB or DC interface. It is widely used in compact audio system designs due to its efficiency and low heat output.

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Why Choose PAM8403 Amplifier Module

Compared with traditional analog amplifier boards, PAM8403 provides higher efficiency, lower power consumption, and cleaner sound output, making it ideal for modern compact audio designs.

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❓FAQ

Q1: What is the difference between the basic and knob version?
A: The basic version has fixed output control, while the knob version allows manual volume adjustment.

Q2: Can it be powered by USB?
A: Yes, it supports standard 5V USB power supply.

Q3: Is it suitable for DIY speakers?
A: Yes, it is widely used in DIY audio speaker projects.