PAM8403 5V Two-channel Stereo Mini Class-D 3W+3W Audio Amplifier
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020

PAM8403 5V Two-channel Stereo Mini Class-D 3W+3W Audio Amplifier

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  • Product SKU: KG089
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Powerful Sound in a Compact Package: 3W PAM8403 Module

Section 1: Enhanced Sound Quality in a Compact Package

Immerse yourself in high-quality audio with the 3W PAM8403 Module. This compact and versatile audio amplifier module is designed to deliver powerful sound performance, making it an ideal choice for a wide range of audio applications. Whether you're building portable speakers, amplifying audio signals, or enhancing your DIY projects, this module ensures an exceptional audio experience.

Crystal Clear Sound Reproduction: Experience crystal clear sound reproduction with the 3W PAM8403 Module. Equipped with a high-performance audio amplifier, this module delivers exceptional audio clarity and fidelity. Whether you're listening to music, watching movies, or playing games, every sound will come to life with stunning detail. Enjoy the full richness and depth of your audio content, and immerse yourself in a captivating auditory experience.

Compact Design, Powerful Output: Despite its compact size, the 3W PAM8403 Module packs a punch when it comes to audio power. With its efficient Class D amplifier architecture, it is capable of delivering up to 3 watts of output power per channel. This means you can enjoy robust sound performance even from small speakers or devices with limited space. Bring your audio projects to life with this module's impressive power-to-size ratio.

Section 2: Easy Integration and Versatile Applications

Simple Integration: The 3W PAM8403 Module is designed for easy integration into your audio projects. It features a user-friendly interface and a straightforward wiring configuration, making it accessible to both beginners and experienced electronics enthusiasts. Whether you're building your own speakers or upgrading existing audio systems, this module simplifies the integration process, saving you time and effort.

Wide Range of Applications: Unlock a world of possibilities with the versatile applications of the 3W PAM8403 Module. From portable speakers and audio amplification to DIY projects and educational experiments, this module caters to a diverse range of audio needs. Its compatibility with various audio sources, such as smartphones, tablets, and microcontrollers, expands its potential applications. Let your creativity soar and explore the limitless audio possibilities with this module.

Section 3: Reliable Performance and Efficiency

Stable and Consistent Operation Stable and Reliable Operation: Experience stable and reliable performance with the 3W PAM8403 Module. It is built with high-quality components and advanced circuitry, ensuring consistent audio reproduction without signal distortions or noise. Whether you're enjoying your favorite music tracks or delivering a presentation, this module maintains reliable performance, allowing you to focus on the audio experience.

Energy-Efficient Design: Optimize energy consumption with the energy-efficient design of the 3W PAM8403 Module. It is engineered to provide powerful audio output while minimizing power consumption. This ensures that your devices can operate for extended periods without draining excessive power. Enjoy the benefits of enhanced audio performance while maintaining energy efficiency and prolonging battery life.

Technical Details

  • Operating Voltage (VDC) : 2.5 ~ 5.5
  • Max Gain : 24 dB
  • Current Handling Capacity (A): 0.08
  • Efficiency : 87 %
  • Amplifier IC : PAM 8403
  • Load: Can direct drive 4 or 8-ohm small speakers
  • S/N Ratio (dB) : 80
  • Power supply Rejection ratio: -58 dB


Physical Attributes

  • Dimensions in mm (LxWxH) : 21 x 18 x 3
  • Weight (gm) : 2



  • Bluetooth Stereo Audio hands-free/headsets
  • In robots that speak or generate sounds to indicate activities
  • Portable Speakers
  • LCD Monitors / TV Projectors
  • Arduino or Raspberry Pi Game Machines
  • Speaker Phones


Additional Details

  • Dual-channel stereo, high output power (3 w + 3 w power @ 5V and 4 ohms load).
  • Good sound quality.
  • Double panel wiring solves crosstalk.
  • Super mini design allows it to be easily placed in a variety of digital products.
  • 3W Output at 10% THD with a 4ΩLoad and 5V Power Supply.
  • Filterless, Low Quiescent Current and Low EMI.
  • Superior Low Noise.
  • Short Circuit Protection.
  • Thermal Shutdown


Product Video


Package Includes

  • 1 x PAM8403 5V Two-channel Stereo Mini Class-D 3W+3W Audio Amplifier

Customer Reviews

Based on 16 reviews
Works very good

I bought these to make a portable bluetooth speaker. So far so good. Will definitely buy again from here

these amps do a fine job and sized to fit in some really small ...

When you need a little extra noise in your projects, these amps do a fine job and sized to fit in some really small projects.

esrail khan
Audio amp

Pretty good, the sound quality it's nice, but it would be nice to add the pot or the holes for it

ashutosh @ deepak
Ordered for my C.H.I.P.

A perfect companion to the pocket C.H.I.P., allowed me to have a speaker and not need to use headphones.

abhishek yadav

This little amplifier module really packs a good punch. Decent sound quality for smaller diy boombox projects. I'd buy again.

Good and as described

Works as described, even works on a Li-ion battery. I am using it on a bluetooth system, so it could be louder. Drives my 3w speakers sufficently.

Five Stars

Works perfect for my project, easy to setup/install into my Retropi mini arcade.

devender singh

small but good sound

gautam kumar
Amazing amplifiers

Finally I found the right size and functional. Recommended.

Not bad at all

I was rather impressed with these little guys