WyreStorm Express™ Digital to Analogue Audio Converter with Dolby Downmix

Part Number EXP-CON-DAC-D

The WyreStorm Audio EXP-CON-DAC-D allows any Digital PCM audio signal to be converted to a stereo analogue signal for connection to AVR, Hi-Fi or almost any other analogue other audio device. 

Key Features:

  • Compact design 
  • Optical & Digital Coaxial inputs 
  • Convert Dolby Digital PCM digital audio from a compatible device to analogue stereo audio 
  • Input Select switch 
  • LED Power indication 





The WyreStorm Express EXP-CON-DAC-D is a Dolby Digital to analogue audio converter capable of taking up to 5.1ch audio encoded in Dolby Digital Surround from compatible multichannel S/PDIF coaxial or TOSLINK optical digital audio sources and downmixing to standard L/R analogue stereo audio.

With inputs selectable via onboard input select switch, converted stereo output signals can then be fed to external devices such as an amplifier, Hi-Fi, recording deck, or powered speakers via standard phono style (RCA) jacks. 

If quick, reliable and cost effective conversion of encoded Dolby Digital audio to analogue is a requirement for your project, the EXP-CON-DAC makes it incredibly easy to connect modern digital sources, such as AppleTV, Blu-Ray/DVD, DAB, digital computer audio to a legacy analogue sound system without requiring expensive additional conversion equipment.




  • Converts S/PDIF digital audio (PCM) signals from compatible device to analogue stereo audio 
  • Supports up to 6 channels (up to 5.1 Surround) of audio encoded in Dolby Digital
  • Manufactured under license from Dolby Laboratories
  • Auto samples at frequencies of 32, 44.1, 48 KHz
  • Includes digital interpolation filter
  • Accepts uncompressed digital audio input signals
  • Optical & Digital Coaxial inputs 

  • Input Select switch 

  • LED Power indication 
  • Compact design
  • Supports audio signals up to 24-bit with sampling rates up to 192 kHz
  • Low-latency Digital Filtering
  • Dynamic Range: 106 dB A-wt
  • THD+N (Total harmonic distortion plus noise) rating: -93dB
  • 1 year warranty

In the Box

1 x WyreStorm EXP-CON-DAC-D Dolby Digital to analogue audio converter 

1 x Universal 5V DC/1A power supply 


64mm/2.5” x 24mm/0.9” x 64mm/2.5”
0 to +35°C (32 to +95°F)
5 to 90 % RH (no condensation)
5v DC / 5W power supply (CE/FCC certified)
1.0w (max)

Input: S/PDIF Coaxial, TOSLINK Optical Digital

Output:  Stereo phono analogue

Distortion: <0.001% @ 1kHz at 2V RMS

Signal to Noise Ratio: > 90dB (20Hz - 20kHz)

Output Impedance: 500Ω

Output Voltage: 1.8V RMS @ Max Input (0dBFS)

Frequency Response: <+/-0.5dB

Chassis: aluminium (black)