Pi Supply Amplifier HAT for Raspberry Pi, JustBoom Amp HAT

  • RS Stock No. 122-8185
  • Mfr. Part No. JustBoom Amp HAT
  • Manufacturer Pi Supply
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

Pi Supply Raspberry Pi Hat

The Pi Supply Raspberry Pi HAT is a high-quality audio amplifier specifically designed for the Raspberry Pi. It is as an audio amplifier that includes digital to analogue conversion to eliminate the need for external sound cards or DACs. You can simply stack the plug-and-play add on board (HAT) onto your Raspberry Pi A+, B+, 2B or the new 3B for immediate use. It includes a class-D power amplifier chip with built-in 192kHz/32bit DAC for a peak power output of 2 x 55Watts. The outputs audio over two speaker cable connector blocks accept anything up to 14AWG cable to provide crystal clear audio to either 4 or 8Ohm passive speakers. It also uses the I2S interface for its audio input that reduces CPU load on the Raspberry Pi compared to USB solutions. It is designed to back the power the Raspberry Pi over the 40-pin GPIO header letting you use a single power supply for the entire system.

Features and Benefits

Plug and play compatibility for ease of use
Hardware and software volume control from your Raspberry Pi
Onboard, hardware jumpers for configuring mute and gain settings (jumpers could optionally be changed with switches)
Mute/enable with GPIO22 (can be overridden by using jumper J4)
No soldering required
Mounting hardware included
Optional IR receiver included in the package
Unused GPIO pins still accessible via unpopulated extension header
Fully HAT compliant
Full driver support in Raspbian/NOOBS
Compatible with OSMC/RuneAudio/Volumio/Moode/PiCorePlayer/PiMusicBox/OpenELEC, and others


Multi-room streaming/local audio player
Interactive art projects with audio requirement
Arcade table projects with high-quality, immersive audio
Streaming (either from cloud or network storage) high-definition audio player
Internet radio player with high-quality stereo audio
Refit old radios with high-quality streaming audio


ANSI/ESD S20.20:2014
BS EN 61340-5-1:2007

Attribute Value
Product Name JustBoom Amp HAT Audio Amplifier for Raspberry Pi
Accessory Category Audio
Form Factor HAT
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