I think the SQ is just as good or might be better, but I preferred the Tenore for pop due to the harder impacting bass. I guess it's the difference between BA vs. dynamic driver. I think they're just as comfy as Tenore.
I also have bought many IEMs as an "upgrade" to Tenore, but ended up selling them. Perhaps one day I'll try the Duoza.
Tenore are much better than Piston V2 in my opinion. The only thing V2 has on the Tenore is bass quantity.
Thanks for this! I've found that, being a musician, timbre is VERY important to me, which is why Tenore is my favorite. I'd like to upgrade, but the timbre has to be the same or better than Tenore. I'll cross CKR9LTD off the list :D