Softears RS10
Very grateful to @Charlyro222 for the opportunity to hear these.
I've spent some time with this IEM off & on since receiving it late last week.
Quick summary:
+ It's a beautiful pair of IEMs
+ Fit is great
+ Clarity & layering are above average
+ Extension is decent up top
+ Nice & technical
+/- Vocals are passable if a little uninspiring
+/- Mids are forward & clear if a little thin
- Overloaded upper mids that are fatiguing for me
- Near total lack of mid-bass-- to echo something @SBranson said yesterday it feels like a portion of the FR is missing.
- Sub-bass emphasis that sounds a little off to me given the lack of mid-bass
- Not a really an inspiring tuning for me-- no real wow factor
- Slippery dippery nozzles that I hard time finding tips for
I am aware of some saying the Shanling M8 isn't the best pairup so I have also demoed the RS10 on my Macbook & N3Pro and my impressions are pretty consistent across all 3 sources-- unfortunately I don't have anything more powerful than the Shanling M8.
My immediate thought upon hearing them was that they sound like a more refined version of the same sort of tuning found in IEMs like the Moondrop S8 & Blessing 2 Dusk. While I did find it quite fatiguing up top I wouldn't say it veered into shoutiness and it certainly was never wince inducing to me like the Dusk was. Like the Dusk, the RS10 seems to need a crap ton of cranks on the volume knob to get loud.
I think fundamentally these have convinced me that I just don't jive with Harman tuning so in the ultimate sense I'm probably not the best person to judge these. I understand a lot of people love them so I might venture to say that if you ARE into Harman tuning these may very well be worth a look. For my money the Oriolus Reborn is a much more inspired & engaging take on a similar tuning and as far as "reference" IEMs go the Campfire Holocene gets a lot more right for me than these do. As with all things in this hobby YMMV.