In previous episodes...
I tried many DD+BA IEMs (from KZ, EMI/Timmko, Magaosi, Yersen...) and hated all of them. BA sounded too harsh, piercing and lifeless to me. I still buy hybrids from time to time but always end up disappointed. Also, Dynamic Drivers in those hybrids never seem to provide provide sufficiently deep sub-bass (I like it much more than mid-bass about which I don't care much).
I love multi-DD IEMs with my favorites being Tin Audio T515 Black, I-Into i8, Artiste DC 1. All of those have great (sub)-bass, soundstage and detail without any sign of harshness in the upper frequencies region.
What I wanted to write a very detailed post about...
My impressions about two other multi-DD IEMs that I have recently tried, namely
NarMoo W1M - very good. Double DD. Apparently same body as Tin Audio T515, and tuning is not dissimilar but interestingly enough W1M is more "n-shaped" with mids brough slightly forward while T515 is mildly V-shaped.
QS1 - not so good. Sounds a bit grainy and detail resolution is disappointing compared to all the above. Some mid-bass bleed too. Triple DD.
But I will not write those detailed reviews...
Because I am now overwhelmed by the IEM that I received two days ago: KZ ZSN. Yes, it is DD+BA but it SO GOOD.
+ Sub-bass goes very deep, I can feel vibrations in my throat
+ Soundstage is huge, with outstanding instrument layering and channel separation
+ Highs are very detailed...
+ ...yet don't have typical BA harshness!
+ Comfortable. Even though I don't like over-the-ear style, these fit like second skin.
+ Cable is pleasant
Basically everything I hated previously (BA, over-ear style, heavy cables) I totally love in KZ ZSN. Time to change my whole paradigm of thinking about hybrid IEMs.
Below $20 it is one of my best Chi-Fi purchases to date. I am open to recommendation re similarly sounding hybrids.
Photo from the internet: