@Jasperous I found two measurements of the Stark online:
https://crinacle.com/graphs/iems/earsonics-stark/
https://www.soundstagenetwork.com/i...arsonics-stark-earphones&catid=263&Itemid=203
I digitized both graphs and also used
Jaakko's Compensation curve on Crinacle's measurement.
Here are all measurements overlaid:
View attachment 286354
That shows pretty awful unit-to-unit variation and quality control. Especially considering the price.
For reference, here's how three units of the Moondrop Chu measure. They cost $20:
View attachment 286355
I decided to average the two measurements of each reviewer, then apply three different targets to each of them.
That leaves you with six presets to compare to each other, which I have attaced as Zip.
I used
https://autoeq.app/ to generate the presets.
For sample rate, I chose 44.1kHz since that's still the most prevalent one.
So please open the Audio MIDI Setup on your Mac and make sure that your DAC is set to 44.1kHz before you start comparing.
Here's how to import the presets into SoundSource:
https://rogueamoeba.com/support/knowledgebase/?showArticle=SoundSource-Custom-HPEQ