Phronesis
Headphoneus Supremus
loving the I4's . I had a pair earlier last year which didn't sound great so got returned. Later bought again and got an awesome pair that sound great out of the box - not sure if the tuning changed somewhere along the way - but these sound great without EQ - the first absolutely needed it.
For me the are one of the few IEMs that still sound great at low volumes even though they are open back - ideal when wearing around the house and others need to get your attention
Love 'em - and the ear hook mod is definitely worth it - can easily wear for 12 hour stints - never listened to so much music in my life - and surely that's the main goal!
I bought mine specifically to use at work. Full-size headphones would look too prominent and give the impression I'm physically isolating myself. Conventional IEMs block outside sound too much and need to be removed to talk to people. With the i4, I don't need to take them off, can just turn down the volume.
But since they sound great, I use the i4 at home too.