I also prefer bassier sound signatures. If you ask me around USD 1000, probably the Essence Ears Evolve. Look up the driver configuration, it's basically designed for treble haha. I personally liked it more than the Hercules Moses when I tried it at CanJam.looking to go against the grain of my preferences and explore IEMS with exceptional treble (still requiring full sounding mid range and lifted bass). Too much energy in upper mids and treble punishes my ears so I typically avoid … so the treble will need to bevtastefully executed. I did have Annihilator for awhile and really loved the set and found treble tuned just right without zapping my ears. I eventually sold but regret it. Ya’ll have any ideas for used TOTL IEMS or newer budget friendly one? Thank you!
If you go higher, I really really loved the Acoustune HS2000MX MKIII's treble.