JustBoom DAC HAT

The JustBoom DAC HAT is a plug-and-play, high-resolution digital-to-analogue converter for the Raspberry Pi. Simply stack the HAT onto your Raspberry Pi and enjoy high-quality audio playback within minutes — no soldering required.

Featuring a 384 kHz / 32-bit DAC chip with hardware volume mixing and a built-in 138 mW headphone amplifier, the DAC HAT outputs line-level audio over RCA and amplified audio over a 3.5 mm jack. It uses the I²S interface for audio input, reducing CPU load compared with USB solutions, and is powered directly from the GPIO header with no extra cables needed.

Key Features

• High-Resolution Audio – 384 kHz / 32-bit DAC (Raspberry Pi supports up to 192 kHz / 32-bit output)
• Built-in Headphone Amplifier – 138 mW output via 3.5 mm jack
• Dual Outputs – Line-level RCA and headphone-amplified 3.5 mm jack
• I²S Audio Input – Lower CPU load than USB audio solutions
• Hardware & Software Volume Control – Adjustable directly from the Raspberry Pi
• Plug-and-Play – No soldering required; all mounting hardware included
• GPIO Passthrough – All 40 GPIO pins remain accessible via unpopulated extension header
• IR Receiver Included – Optional infrared receiver for remote control operation
• GPIO Powered – No additional cables or power supplies needed

Software Compatibility

• Raspbian (full driver support)
• OSMC / Volumio / Moode / RuneAudio / Max2Play
• PiCorePlayer / PiMusicBox / OpenELEC and others

Compatible Boards

• Raspberry Pi A+, B+, 2B, 3B

Package Contents

• 1× JustBoom DAC HAT
• 1× IR receiver
• Mounting hardware

Resources

• Getting Started Guide
• JustBoom Tutorials
• Software Guides
• Board Pinout