JustBoom:DAC Cape

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The JustBoom DAC Cape is a plug and play, high resolution, digital-to-analog converter for the BB Black. Simply stack the plug-and-play add on board Cape onto your BB Black and it will be ready to use immediately.

We’ve designed the JustBoom DAC Cape to be simple to install and use. With no soldering required and all the mounting hardware already provided this product is suitable for absolute beginners and seasoned professionals alike. Just connect your DAC Cape to a set of powered speakers or an audio amplifier and you can be up and running quickly, enjoying flawless high quality audio playback within minutes of unboxing this BB Black Cape. We also include an optional IR receiver to allow remote control operation of your JustBoom DAC Cape.

Includes a 384kHz/32 bit DAC chip with hardware volume mixing as well as a 138mW headphone amplifier. Outputs are line level over RCA and headphone amplified over 3.5mm jack cable. It is also powered directly from the GPIO header so no extra cables or power supplies are required to connect to the BB Black. All of the GPIO pins are still accessible on the DAC Cape for easy customisation of your project – add additional sensors, buttons, LEDs, rotary encoders or anything your heart desires.


  • Full high-quality audio – 384kHz / 32bit
  • Includes both a DAC (digital to analog converter) and headphone amplifier
  • Line-level RCA and headphone amplified 3.5mm jack outputs
  • Plug and play compatibility for ease of use
  • Hardware and software volume control from your BB Black
  • No soldering required
  • Powered by the BB Black GPIO header
  • Mounting hardware included
  • Optional IR receiver included in package
  • Compatible with the JustBoom Amp which can easily stack on top of the DAC Cape to add amplification and extra outputs!
  • All the GPIO pins still accessible via 40pin unpopulated extension header


Product Images

To go back to the cape list, please click BeagleBone Capes