Does every name has to start with "i"?
I think just plain and simple "Silencer", "Silencio" or "Suppressor" kind of rings the bell for this kind of adapter. Or if you just HAVE to have the "i" then "iSilencer", "iSilencio" or "iSuppressor"
btw please made your gain switch more accessible......it's a pain for my fingers to try to tick up the tiny switch in dark....
Also my iCan Nano ( don't know which version is it) is completely useless for my iems (Se846, JH-5, Hippo pro one) without presets all my songs -10++db....
HAHA! You could call it the "iThink" since it's for the more sensitive headphones. They can call it the "iThink iCan" xD
In addition the one with bigger impedance can be called the "iKnow iCan"