DFRobot
HIFI Digital Bluetooth Amplifier-50W*2
A HiFi digital power amplifier board with Bluetooth 5.0 and AUX input, delivering 50W per channel in a dual-channel configuration. With AM interference suppr...
A HiFi digital power amplifier board with Bluetooth 5.0 and AUX input, delivering 50W per channel in a dual-channel configuration. With AM interference suppression and filtering, the board achieves THD as low as 0.1% even at sustained high-power output, producing clear, detailed sound.
The board includes protective panels on both sides and comprehensive protection circuitry. It works with 4–8 ohm passive speakers (30–200W) and can connect wirelessly to Raspberry Pi, smartphones, and other Bluetooth-enabled devices.
Key Features
- 50W × 2 Output – Dual-channel amplification for stereo sound
- Bluetooth 5.0 – Wireless audio streaming from phones, Pi, and other devices
- AUX Input – Wired audio connection option
- Low THD – 0.1% distortion with AM interference suppression and filtering
- Volume Control Knob – Onboard potentiometer for level adjustment
- Protective Panels – Top and bottom acrylic covers included
Specifications
- Output Power – 50W × 2 channels
- Operating Voltage – DC 5–27V
- Speaker Impedance – 4–8 ohm
- Speaker Power Rating – 30–200W passive speakers
- THD – ≤0.1%
- Input – Bluetooth 5.0 + AUX
Protection Features
- Overvoltage protection
- Undervoltage protection
- Overheating protection
- Short circuit protection
- DC detection
Ideal For
- DIY Bluetooth speaker builds
- Raspberry Pi audio projects
- Desktop and workshop audio systems
- Custom HiFi amplifier builds
Package Contents
- 1× HiFi Digital Bluetooth Amplifier Board (50W × 2)
- Protective panels (top and bottom)
Jargon buster
Plain-language definitions for the technical terms used above.
- potentiometer
- A variable resistor usually turned with a knob or shaft to create an adjustable electrical signal. It is often used for inputs such as volume, brightness or position, so it helps beginners learn how a microcontroller reads changing values.
- Short circuit protection
- A safety feature that helps protect the device if its output or wiring is accidentally connected in a way that causes excessive current flow. This matters in automation wiring because mistakes or damaged cables can otherwise destroy the sensor or power supply.
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Audio & Video
Brands
Connectivity
Supplier page — dfrobot.com
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Related Tutorials
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