JustBoom DAC

JustBoom DAC

JustBoom DAC


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Connect your JustBoom DAC to a set of powered speakers, headphones or audio amplifiers and you can be up and running quickly, enjoying flawless, crystal-clear high quality audio playback within minutes of unboxing. If you need amplification or additional output for passive speakers, the JustBoom DAC is also compatible with the JustBoom Amp - just the stack on top with the mounting hardware and board will be good to go.

This affordable, standalone DAC has among the best value for money. The digital (S / PDIF) inputs include both optical (TOSLINK) and coaxial / RCA connector options. The onboard DAC chip offers 384kHz / 32 bit outputs (although this is limited to the input S / PDIF receiver to 108kHz / 24bit). The JustBoom DAC additionally includes a 138mW headphone amplifier.

The board outputs line level audio over RCA and also offers the headphone amplified output over 3.5mm jack cable. The board is powered by a standard 5 volt microUSB power supply - this is a common power supply in tablets and smartphones so many of you already have one available or can pick one up for a good price!

Need help understanding how this product works? Follow our product guide.

Setup Guide

Follow our full setup guide for assembling your JustBoom DAC and Case.

Use cases

A standalone audio DAC card provides the perfect solution for a number of exciting projects and applications where standard audio resolutions just won't cut it. Here are some possible use cases for the JustBoom DAC:

  • Paired with the JustBoom Digi HAT / JustBoom Digi Zero as a receiver for your digital audio output
  • Paired with the JustBoom Amp to offer all in one DAC and amplifier for a compact high-quality audio solution
  • High-quality headphone amplifier for your digital audio receiver
  • Streaming (either from cloud or network storage) high-definition audio player
  • Multi-room audio player
  • Media center / set-top box living room entertainment system
  • And many many more….


  • Full high quality audio - 108kHz / 24bit (uses 384kHz / 32bit DAC chip but this is limited due to the S / PDIF input)
  • Includes S / PDIF input using either optical (TOSLINK) or electrical (RCA / coaxial) connections
  • Includes both a DAC and headphone amplifier
  • Line-level RCA and headphone amplified 3.5mm jack outputs
  • Plug and play compatibility for ease of use
  • No soldering required
  • Powered by the 5v micro USB power supply - you probably already have one!
  • Compatible with the JustBoom Amp
  • Mounting hardware included

Technical Information

  • Burr-Brown / Texas Instruments PCM5102A DAC chip - 384kHz / 32 bit. Please note that due to restrictions of the S / PDIF receiver the max quality is limited to 108kHz / 24 bit
  • Texas Instruments TPA6133A2 headphone amplifier - 138mW
  • 112db SNR and -93db THD for best-in-class audio
  • Advanced ESD protection on both headphone and RCA outputs
  • Ultra low noise voltage regulator for the best audio output (LDO 10uVrms)
  • 5v microUSB power input requires at least 100mA when using RCA connectors or at least 200mA when using headphone connector. We recommend at least to 500mA power supply
  • Stacking with JustBoom Amp by way of board-to-board connector. All of the hardware required for ease of use

Additional information

Weight 0.05 kg
Dimensions 5 × 1 × 3 cm

Pi Supply


Raspberry Pi 3, Raspberry Pi 4, Raspberry Pi Zero

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