The PAM8403 5V Mini Audio Amplifier Module with Volume Control is a compact digital audio amplifier board running on 5V DC with 3W output power and above 90% efficiency, distinguished from the standard by its onboard potentiometer — a small physical volume control knob mounted directly on the board that lets you adjust speaker volume by hand without touching the phone or audio source. This pam8403 module is designed for portable audio projects where the amplifier is enclosed inside a speaker box or project case, and reaching the source device to change volume is inconvenient.
The pam8403 amplifier board’s onboard potentiometer is the practical difference that determines which PAM8403 variant to choose — if the build will sit on a desk where the phone is always within reach, the HW-104 without a knob is fine; if the speaker enclosure will be placed across a room, mounted to a wall, or used as a standalone portable speaker, having a volume knob directly on the 8403 amplifier board means the listener can adjust output level directly at the speaker without needing to unlock a phone or open an app.
The pam amplifier board volume control’s mini form factor fits inside compact speaker enclosures and portable project boxes without taking up unnecessary space, and the 5V supply runs from a standard USB power bank — making this pam8403 with volume control amplifier one of the easiest modules to power in a portable build. StemVolt offers fast and reliable delivery with trusted service support.
Related Product:
- Checkout CA-6928 V2 Bluetooth Audio Module
Features:
- Onboard potentiometer adjusts volume without any external control circuit needed
- Output power of 3W drives 4-ohm and 8-ohm speakers at room volume
- Single 5V DC supply works with USB chargers and power banks directly
- Mini module form factor suits portable audio and embedded speaker projects
Technical Specifications:
Applications:
- Module used for portable DIY speaker box with onboard volume knob
- Uses pam8403 module for wall-mounted speaker volume control
- Pam8403 amplifier board for portable USB speaker demo
- Maker uses amplifier board for LiPo Bluetooth speaker enclosure
Package Includes:
- 1 x PAM8403 5V Mini Audio Amplifier Module
Alok Maheshwari –
Perfect for IoT projects, offering stable performance, low power consumption, and easy integration.
Deepak Mantri –
Best deal for audio projects
Ashish Gupta –
Fast shipping service
Rakesh Soni –
Amplifier module delivered clear sound output and convenient volume control for compact audio systems.
Vinod Shringi –
Technical support was helpful, packaging was secure, and delivery was quick without any issues.
Nitin Vijay –
Product arrived intact