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RME DPS-2 Linear Power Supply

Sokel

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Sep 8, 2021
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@Sokel: I recommend reading Karl Raimund Popper's thoughts about empirical falsification.
Good article but data is nicer:

D50 III vs RME

D50 III EQ Match to RME.pngD50 III MT32 EQ RME_DAC.pngD50 III MT32 EQ Topping.png

Also:

Topping D50 III RCA Stereo DAC PEQ On Filters On Measurements.png

also:

also:


And some informed insight:
That correlated noise with the low frequency EQ engaged looks like a potential issue with filter quantization, either in coefficients or internal state. It is low level with the 1kHz tone, but you might want to measure with tones that are closer to that filter if you see it in the future.
At this low level, probably not a huge issue, but that noise, if the hypothesis of cause is correct, be careful about using very low frequency filters. This problem get worse as you move lower in frequency. For example, probably don’t want to put a 20Hz high pass filter on there.

Edit:links.
 
Last edited:

staticV3

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AdamG

Enjoy the Music your way…
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Merged here. Thank you @staticV3 for your help with trying to keep the house clean and tidy. :cool:
 
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