Originally Posted by gnarlsagan
Yes actually. It sounded thinner to me than the ER4S, with hardly any bass and more treble tilt, kind of like the Tsar 350. It wasn't possible for me to get it anywhere near the reference plane though, due to its size. I'm not sure if that's required for the PR.
I have the Ety ER4S and Noble PR's on loan from Brannan.
To me they sound pretty close, but I hear the opposite. I think the Noble R mode has more bass than the ER4S. To me it's not a subtle difference especially on bass heavy tracks. I have owned the ER4S's for over 15 years and always loved the sound, but found it was too lean. With the Noble PR in the R configuration, I finally hear an Ety ER4S with more bass. They should sound very similar since they are both single BA drivers. The measurements look really close to me.
I have no idea why I hear it differently than @gnarlsagan. I am using the triple flange tips on the ER4S and insert them really deep to get some bass. With the Noble PR, I use the large red silicone tips that come with them. They can't insert anywhere as deep as the Ety's, but once I get a good seal, the bass level is higher than the Ety's. I also find the Noble's much more comfortable since I don't have to insert the tips as far.
Overall, I much prefer the Nobles.
Of course the Noble PR/FR are more than double the price of the Ety's so you have to factor that in. Although you are getting two different IEMs in one shell with the Nobles.
(BTW I was listening to a Windows laptop -> Schiit Wyrd -> Geek Out 450 -> Schiit Lyr 2)