Just nice, the
KZ Krila has just arrived. Graphs via IEC711 coupler. 8 kHz is a coupler peak.
This IEM retails at $16 USD. Unlike the recently well-received KZ D-FI (single DD),
the Krila is a HYBRID (10mm XUN DD + 30095 BA). Like the D-FI, the Krila has
4 tuning switches to give a total of 16 possible permutations.
While the tunable version of the D-FI had a 4 dB change in sub-bass between the most extreme of tuning switches, the Krila has a 5 dB change in bass, but also on graphing, there are some small changes noted above 7 kHz, so the switches aren't gimmicks.
The recent CVJ TXS ($11ish USD) was quite gimmicky as 3 out of 4 tuning permutations were the same, and the last was very subtly different, so the KZ Krila is probably the cheapest tunable IEM (as of the time of writing) that has legit changes in tonality with the various switch settings.
Haha spent a migraine inducing 45 minutes to graph and average everything, but for the sake of science! Listening impressions to come later!