Hi folks,
Follow up on the JD7.
Firstly, look at that beautiful channel matching (raw measurement, no smoothing). Let me remind you that these are single DD, not multi-BA. (The 8k peak is the artefact of my 711 coupler. The IEM does have 8k emphasise for treble sparkle, but not that much).
Now, let's verify Fiio's claim of Harman target:
Yup, close enough with around 3db deviation entering around 250Hz (
the "punch" region nope, wrong, 250hz is the "warmth" or "mud" region. Punch is 125hz.). The ear-gain is slightly pulled back as well, so I did not hear shoutiness. And look, finally Fiio gets rid of the 5k ice pick. I am pleased to report that sibilance is very well controlled, even with Ed Sheeran's equals album (boy that album is spicy).
One last thing, are you ready for surprise? Have a look: JD7 vs Blessing 2 vs Crinacle IEF target.
Early, out-of-box verdict about tuning:
very well-done. Vocal sounds full, clear, detailed, and just beautiful with this IEM. I went through some old Bon Jovi's hit and I kept going and going with a dummy grin on my face.
More graph can be found on my database (
https://iegems.nk-tran.com/)
@ChristianM: this IEM might be what you are looking for.
Important note on source: I did the entire listening with Hidizs XO (pre-production unit). Think of it as a slightly more resolving but slightly less powerful S9 Pro. The special thing about Hidizs dongle is that they "round off" the treble and increase the soundstage depth. With the support of XO, JD7 (and other "well-tuned" IEMs like Blessing 2) have a stronger sense of space and depth and less shoutiness.
Out of curiosity, I switched back to KA3, which is bright, detailed, and kind of flat in presentation. My reaction:
Shouty, kind of harsh, and the worst of all: 2D soundstage. Same with Aria, same with Blessing 2, same with other "well-tuned" IEMs. Maybe something wrong with my ears? That's why I don't usually like "well-tuned" stuffs