HiFiMAN RE800 In-ears @ TechPowerUp
 

The HiFiMAN RE800 is a new high-end in-ear featuring a completely new driver from HiFiMAN. This new driver has a topology-optimized membrane that should reduce distortion. The RE800 launches at $699, which puts it straight into a highly competitive segment. We take them for a listen and see if the new housing and driver can make an impact.

https://www.techpowerup.com/reviews/HiFiMAN/RE800/