Ayon Audio Sigma Tube DSD DAC

AYON AUDIO Sigma 32bit DSD Digital To Analog Converter 

Ayon Audio is pleased to introduce the superb audiophile “Sigma” 32 bit digital/analog converter. The Sigma is also prepared for computer playback and general DSD professional audio use. The single-ended output stage and a differential gain stage are composed of a high performance 6H30 tube per channel. The Sigma DAC features a vastly overrated, high capacity power supply for the analog output stage with tube rectification and an oversized power transformer. The sound is powerful with fantastic bass performance, super dynamic, airy, detailed and holographic. The Sigma offers an outstanding price/performance and value.

Manufacturer’s website AYON Audio

Ayon Sigma Specifications

Digital/Analog Converter

Ayon Sigma


32 bit, PCM up to 192k, 64xDSD, 128xDSD

DAC configuration

8 mono DACs to 2- stereo outs

Tube complement – Analog output


Dynamic range

> 128dB 

Output level @1 kHz / Rms


Output impedance  Single-Ended-RCA

~ 300 Ohms

Output impedance  Balanced-XLR

~ 300 Ohms

Digital input

1 x S/PDIF, 1 x AES/EBU, 1 x Toslink, 
1 x BNC, 1 x USB, 1 x I2S, 1 x DoP, 
3 x BNC for DSD

Analog output


S/N ratio

> 120 dB

Frequency response

 20Hz – 20kHz  +/- 0.2dB

Total harmonic distortion @ 1kHz

< 0.002%

Remote control


Dimension (WxDxH) cm

48x36x11 cm


12 kg



Please find reviews below:


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“Enjoy The Music” Online Magazine Review


Weight2 kg