Also in pro audio. (Sounds like you’re in live sound. I’m a studio guy.) I personally like the Grado line. Those v6’s/7506’s do a good job of being loud in a sealed back configuration, but I haven’t ever used in-ears for reference monitoring. I’m a fan of Sennheiser 600’s and 800s, BeyerD 770’s, AT m50’s and some…

Meh... Sorry. I have been in professional audio for over 20 years. I tried several Grado models. I was just never impressed with Grado cans. (Although I respect the craftsmanship...) Like most professional audio technicians...