8k resonance/insertion depth refers to how far the IEM is inserted into the 711 coupler. Your resonance peak seems to be at ~10 kHz, which is deeper than the usual 8 kHz goal that most reviewers try to follow and that will change the treble. Example:
Try to fit a bit shallower and match the resonance at 8 kHz, and the treble will align more with the Timmy graph. Also, 711 couplers and mics will vary quite a bit, you can’t ignore those variables or assume it’s QC.
Chap is there anyway to get you to try and measure a couple more IEMs that Gizaudio also has measured. This way if you also align those new measurements to 8k (ideally both of you using the same tips and normalised at 500hz (solely for best practice as it is irrelevant when comparing the same IEM)), we can get some greater understanding of if your coupler consistently shows less bass than Gizaudio (you may also want to apply the 5128 EQ compensation that @Timmy-Gizaudio was explaining the other day to help comparisons - though as this is a Crin-centric project maybe that’s not your preference). Whilst not perfect this will help to shine some light on whether this is likely to be QC (though I am sure any manufacturer would say this is still within the standard 3db error deviation).
This this this - is exactly what we are looking for.
Realistically if the 5128 EQ project allows compensation to IEF rig, do they publish the distribution data from the individual squigs to that target? That way we could plot a comparative graph of individual squigs to know if say @Timmy-Gizaudio is more bassy, etc… Again not the perfect way to do it but we all know I am lazy.
For the bass driver that stands in the Canpur CP622B, air (ventilation channel) is needed, which they designed very well, I also noticed this when testing the same driver, and did the same. Probably the engineers who designed the Subtronic Storm use a different driver or did not make a ventilation channel for the driver.
That’s why the bass in the CP622B is so clean and powerful.
I’ll test the sound and other performance later after charging them up.
Moondrop please care more about product design. You have FiiO as a prime example of how to make a product like this. The EVO’s design has zero excuse to be this poorly done.
I was wondering about this when I first saw these drop. It makes no sense why they would not create a recess for the iems. Fiio does this very well as you called out. I had the UTWS13 for just under two years before they broke on me. I now have the iFi Go Pods and there is just too much space for IEMs. When carrying it around you can hear you can hear the IEMs bobbling all over the place.
Still, what Moondrop did with these makes them essentially unusable for me
I think they literally repurposed the Blessing 3 case as well. Feels like cutting corners. I’m also snapshotting this review (not mine) because the previous one got deleted from the Linsoul site lol.