Excellent review and as always, very insightful. Thank you!

Simply great review. Showing a lot of information. Great Leonard.

Great review ! Thanks for the work

Described everything about the EST50 perfectly. Kind of amazed that they manage to strike such a good balance, despite having this elevated bass

What a dive, great review man, glad to have found this. As I identify myself with your song choices, this greatly helps percieving your impressions. Congratulations for your hard work.

You are getting so good at review, mate! Good job! Ironically, your review makes me want the Neon Pro rather than the EST50.

My set sounds very much more like the Perrivan Audio graph:
Perrivan Audio review
That means the treble 'cuts' off at 5 kHz and there's not much treble after that. Some tracks produced with lots of bass are too much. More guitar based music, singer songwriting artists like Jane Siberry and acoustic sounds pretty good. I guess I prefer a more neutral, slightly treble leaning tuning. It was interesting to hear but it's rarely in my ears.

Great review. Still in 2 minds whether to get this or wait for the new Penon IEM....the Neon pro is out of my price range.

Where some IEMs are new and fun, the EST50 somehow gets better and better the longer you get to know it...........and the more cables you roll with it. I swear it’s not the IEM I got when I first received it? Either I changed or the IEM changed, or both.......all for the good?

Great review bro. EST50 still has many lovers <3