Fantastic review!! Chapeau to you Dsnuts!!

Nice review as always. I have one on the way along with numerous cable choices.

I absolutely enjoy writing about excellent earphones. It is much easier to write about. The EST50s I have no doubts will be very competitive for the price range.

Which you prefer against Land?

That depends. The EST50 with the solar cable is astounding. It is every bit as good as the LAND. I did a comparison with the Land here. https://www.head-fi.org/threads/isn...t50-successor-to-the-h40.920551/post-16422720

Land is a higher priced IEM for a reason but at the same time the EST50 has its own sound and holds its own not only against the LAND but many of my top tier earphones. It is a great value earphone for what it does. Nothing missing from the signature and that is the best aspect about the EST50.

I wonder how the EST50 and the volt compares to the UM Melody MEST Mk2

I'd love to try these, great price for the tech you are getting.

Hi
I was wondering if the ISN SC4 cable is a good choice or not for replacing original cable of EST50?
Thanks

It is a good match. larger airier sound using the ISN SC4. A bit more spacious and detailed due to more silver influence.
I also like the Penon Mix with the EST40 as well.

I am very happy with the sound of EST50 but... i got bilateral driver flex... is there something i can do? have you got something like that?

Try some different types of tips with a slower insertion. Driver flex shouldn't damage the earphone but it does get annoying. Try one size smaller than what your using tip wise might fix the issue.