kmmbd
500+ Head-Fier
E500 is a far cry from the E5000 and E4000. Also the driver design has differences alongside the massive difference in acoustic chamber design (E5000 has a rear bass reflex chamber of sorts).Some people say so. Similar high-quality driver in a ridiculously affordable package.
I wrote this article a few weeks back where I compared all E series IEMs. I think it might be helpful for you:I’d like to try a final iem but I can’t chose one
I’d like something similar to my Pandora Hope VI, maybe E4000/5000?
https://www.audioreviews.org/final-e-series-lineup-kazi/
I have owned all of them over the years and now I only have the E500, E3000, and E5000 in collection. E series IEMs won't give you treble details as they're mostly focused on bass and mids. A3000 might be closest to the Sonorous VI sound.