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shelly, no phone needed.. 2 steps instead of 6

I have the shelly smart plugs which have there own web interface. Any web brower can control it.

50Watts it is :)

An other try: move odd/even speaker slightly from the center line so the magnet does not touch?

You can still do the curve delays with dsp and multiple channels

I would take a good full range speaker and put it close to the DUT. A waterfall spectrum of the DUT output while its being bombarded by a 100dB SPL full range sweep would be an interesting test.:cool:

No it's real clipping

16 bit would give you 1/65536 error in amplitude for each sample. You are right that reconstruction of in-between samples could in theory have a slightly larger deviation from 1/65536 due to the interpolation.

Sorry, you are wrong, in normal conditions (F < Fs/2 , sufficient bits per sample, accurate clock) the reconstruction can be as perfect as you want.

You are showing a reconstruction of a clipped signal! This is not a normal reconstruction.

:facepalm: can you see the emoticons I used?

its audioSCIENCE here... Science sometimes likes to do things, just because we can!:cool: Who cares if its useful or not ;)

Nice! Did you try to up the bit-rate to see when you can not hear the difference anymore?

Indeed normal up sampling will not recover any lost information. But I could imagine a new way of up-sampling: Recognizing and classifying sounds and based on that reconstruct missing harmonics. This looks like image reconstruction where you basically identify objects in the image, for...

If you would repeat your test starting with an original image that you down-sample and then up-sample you can evaluate how good your up-sampling matches your original

I once ripped a spotify track and did subtract the samples with a CD copy I had, The result was a difference file at a very low amplitude with only some high frequency 'hiss' in it. It should at least tell us that disabling normalization brings you close to the original redbook cd track.

from their website: Following is a list of some of the technical features of the SDAC: XMOS X200 USB streaming controller operating in asynchronous transfer mode. IDT XLH series oscillators provide and exceptionally stable and low noise sample clock for DAC. 12kHz to 20MHz phase jitter is...

Output impedance of xlr and rca outputs are most of the time made series resistors. You can even short circuit them without any issue

An XLR out typical has an 100 ohm output impedance, so a >200 ohm headphone should be no issue at all. Electrically , I see no issue, only the max SPL could be limited.

Almost don't dare to ask but: did you remove the jumpers between low/high connectors?