Let's talk about "sound quality"...
Added 2022-02-07 12:14:44 +0000 UTCThe discount code for the Earfun Free Pro in the video description should become active in some hours.
The mentioned IEM was the 64 Audio U12t which goes for around $2000. I based my EQ on a measurement I got from Crinacle which was obviously measured with a resonance around 7000Hz, I have no idea how it would measure at 6000Hz but tried to follow the graph as close as possible without that additional peak at 14k:
If your resonance is close to 6000Hz, you can try the setting out, which IMO sounds really terrible:
