ApplePi DAC w/ Volume-Clocker Measurements

[orchardaudio]

I just wanted to make a comprehensive post of all measurements, of the ApplePi DAC and Volume-Clocker combo.

SNR A-Weighted (XLR):

SNR no-weighting (XLR):

SINAD (XLR):

Dynamic Range A-Weighted (XRL):

Dynamic Range no-weighting (XRL):

THD+N vs Level (XLR):

IMD vs Level (XRL):

Frequency Response (XLR):

THD+N vs Frequency (XRL):

Linearity (XLR):

Jitter (XRL) - 256k FFT with 16 averages:

Crosstalk (XLR):

If there is something else that you need please post and I will update.

 

[derp1n]

Measurements without a-weighting.

 

[orchardaudio]

Measurements without a-weighting.

Original post updated.

 

[avatar]

too bad it's not a standalone device

 

[pos]

That would be the Gala DAC...

@orchardaudio, could we get the same kind of measurements for the Gala? (including measurements with the SRC chip physically bypassed if possible, especially the jitter one)

 

[restorer-john]

Orchard, I suspect your frequency steps on the AP are perhaps too coarse at the end of the FR test. I cannot believe the D/A would be -6dB at 20KHz.

When are you going to update the specifications on your website to reflect the actual results your products can achieve?

 

[orchardaudio]

When are you going to update the specifications on your website to reflect the actual results your products can achieve?

What specification do you believe is wrong?

 

[Grave]

107.5, 109.5. That's a 2 dB difference in SINAD between channels, weird.

 

[orchardaudio]

Orchard, I suspect your frequency steps on the AP are perhaps too coarse at the end of the FR test. I cannot believe the D/A would be -6dB at 20KHz.

you are correct it is just a number of steps, that is the issue.

Here it is with more steps:

 

[restorer-john]

That's much better.

 

[orchardaudio]

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[orchardaudio]

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