ATR and ATE have the same driver but sound differently - or not - you contradict yourself! Sennheiser CX 5.00 and Momentum in-ear also have the same driver and also sound differently because the drivers are tuned differently. ATR and ATE probably always had the same driver. I have 2 pairs of ATR (mid 2017) and one ATE (late 2016).
Do the latest ATE and ATR still have different length nozzles?
Contradict myself? how? I told that ATR
v1 and current ATR
v2 are using different drivers. I have had over 5 units of both, ATR & ATE (more of ATEs). I have opened and removed drivers from most of them (some were for gifts and not for modding). Now, read following with care: ATRv1 has blue shelled driver, without hole "lip" in front of diaphragm and nozzle inner diameter were larger than ATE before 5th version. ATE has always had red shelled driver, with hole "lip" in front of diaphragm and latest ATR & ATE have exactly same lentgh nozzles, same size port holes with same filtering material.
Now, to make it even more clear that ATRv1 and ATE 5th gen use different sounding drivers - I have tested both drivers in exactly same custom shell in same conditions - they sound different.
Current ATRv2 and ATE 5th gen do sound exactly same in exatly same conditions, and both have same looking red shelled drivers with hole "lip" in front of diaphragm.
ATR & ATE have not always had same drivers but now with latest (2 weeks ago received ATR & ATE) they are exactly same, in sound and physical looks.
I also have ATE 1st gen and 2nd gen, which have different sound due to different shells and filtering materials. 3rd gen were tuned slightly different. ATE-S was 4th gen but I do not have them (only heard once) which had more bass than regular ATE before 5th gen. Current 5th gen ATE is more neutral tuned and detailed in highs&mids than previous but still have some emphasis on bass but not so much as before.
If You want I can take pictures of my removed ATE&ATR drivers to show differences but I don`t have camera atm.
I know very well that some drivers look same but sound different but this is not the case here. I repeat myself - current latest ATR & ATE have exactly same drivers and sound exactly same in exactly same conditions - it wasn`t so before - so, You can`t recommend ATR and ATE to ppl as having different sound anymore.
Over and out