I’m a new akg n5005 owner and they are my first IEM other than my monoprice m-the which are really quite good. Thank you for head-fi and the suggestions in this thread particularly about tips. The stock spinfit large tips work ok, but slip out easy, the black one just kinda fit like a trampoline. Tried the dual flange and they alternated the high frequency to the point they sounded shouty, the comply 500 L improved bass response but thye seemed to mute them just a bit with the dust cover, and they tended to not respond well to yawning or snacking. So based on info about how n5005 does not sit deep I tried the cp100+, which seems so far to be the best fit for me. I can shake my head and the sound does not change. Will also try the Bose but the sales and marketing is confusing me still.
I’m running off an iPhone dongle at the moment and my only other set are gs1000’s assumed original version. While very different it’s fun to compare.