Kerouac
Headphoneus Supremus
You can say as you will in regards to subjective sound quality, but implying that the use of Noble products are not "outstanding for general ear health," compared to products with ADEL tech is unsubstantiated, and promulgating such a notion should be considered slander.
(So sayeth the Audiologist, Doctorate in Hearing Science)
Well, first of all this reply (as a Zeus XR owner) ain't about attacking Noble (c)iems as I'm confinced that they will (also) sound very good. Especially after what I've read about the Encore and Katana. Signature preference plays a big role on this totl level for sure.
But regarding the ADEL subject: I had the chance to try an (1964 Audio) iem with ADEL tech from another HF member, that visited my house some days ago. My Zeus XR is a non ADEL, which choice was mainly based on budget, but I was still curious about the difference.
Now then, the difference in pressure on the eardrum was quite big/noticeable (almost completely disappeared with the ADEL iem). Although I'm not an 'Audiologist, Doctorate in Hearing Science', that build up pressure over a long period on the eardum just can't be a good thing, can it?