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Quick measurements: Holo Audio Spring DAC v1 Level 1

pkane

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#1
This DAC has been measured before, but I think my results are sufficiently different to warrant yet another data point. This is stock Holo Spring v1, Level 1, R2R DAC. Measured using ADI-2 Pro FS ADC and REW.

Some of the highlights:
  • Lower THD+N -108.1dBFS @1KHz
  • Lower jitter
  • Cleaner multi-tone
1KHz, -2dBFS, 44.1KHz, balanced output @ 3.926V:
SINAD-OS-Mode.png


Distortions vs. Frequency:
THDN+Freq.png


Distortions vs. Level:
THDN+Level-using-ADI2-Pro.png


Jitter J-Test:
JTEST-using-ADI2-Pro.png


Multitone signal:
Multitone-using-ADI2-Pro.png
 

Angsty

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#2
This DAC has been measured before, but I think my results are sufficiently different to warrant yet another data point. This is stock Holo Spring v1, Level 1, R2R DAC. Measured using ADI-2 Pro FS ADC and REW.

Some of the highlights:
  • Lower THD+N -108.1dBFS @1KHz
  • Lower jitter
  • Cleaner multi-tone
1KHz, -2dBFS, 44.1KHz, balanced output @ 3.926V:
View attachment 131256

Distortions vs. Frequency:
View attachment 131257

Distortions vs. Level:
View attachment 131249

Jitter J-Test:
View attachment 131250

Multitone signal:
View attachment 131251
I can’t recall seeing a nicer multi-tone.
 
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