Haven't heard the Turandot, but some folks in the Audiosense thread say the T800 can hit 80 - 90% sound quality of a Campfire Andromeda. Can't say for sure, as I haven't heard the latter, but the T800 does blow my multi driver Westones out of the water, and at a cheaper pricing to boot.
We can discuss this further in the Audiosense thread as this is a sub $100 thread, but it's my endgame all BA set and now I'm only in the market for DD IEMs since getting the T800.
The T800 has great instrument separation, clarity, details, soundstage and isolation. U shaped, subbass extends very low and of good quantity (for a pure BA bass). It is a bit bright, so not the best option for treble sensitive folks, but the treble can be tamed with knowles filters, eartip changes or even cable change.