RME DPS-2 Linear Power Supply

[Sokel]

@Sokel: I recommend reading Karl Raimund Popper's thoughts about empirical falsification.

Good article but data is nicer:

D50 III vs RME



Also:



also:

DSP Measurements and Rising Noise Floor

In several threads related to DSP platforms I've seen requests for measurements with filters engaged. I thought it unlikely that implementing filters in a DSP would have measurable effect on noise / distortion other than the obvious change in the fundamental, however @Sokel recently mentioned...

www.audiosciencereview.com

also:

Re: 4x10 problems in low frequency ranges

I'm having some trouble setting up my EQ with MiniDSP since the filters behave erratically as you low the frequency. Here is the same PEQ except one is set to...

www.minidsp.com

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.