Rant: Not quite, Angrygoldfish, as one artist once wrote (on a poster he gave me), "We should be angrier than we are". It is absolutely not OK for any equipment to suffer from what is either some poor construction or planned obsolescence. And especially not for a 100€ IEMs pair (if it were merely a 10-15€ IEMs pair I would not complain much, but 100€ is not just peanuts, even though some 'audiophiles' who pay 10x more for IEMs might snob such considerations.) These things should be aiming to last several years!
Customer experience: My RE-400 got the same issue as several other people, after about 7 months and a half of light/moderate (once or twice a week only on average) and careful use, i.e. the left ear went nearly silent all of a sudden while listening to them, a couple weeks ago. Good thing though, is the guarantee: The customer service from HifiMan has been perfect, very courteous and very fast feedback, same thing from the local representative in Germany Sieveking Sound (I shipped the defective unit back to the German company), very fast and very courteous, whose replacement RE-400s I just received (the less positive aspect however being that they sent me a pair with a dirty cable at one place - some kind of big dirt was on it (looked sort of like earwax, some dark yellow thing), it got wiped off easily but was weird ; and a few very small indentations on the plastic section of the cables ; and the backs of the aluminium cases look partly scratched which imo is not exactly what Sieveking Sound claimed to be a 'neuwertig' (i.e. "like new") unit, i.e. the replacement unit looks somehow older than the defective one I returned). Am just burning them in a bit now (even though I suspect they already have gotten some usage), so I will be checking in a day or two that they sound as they should - but at least I can already hear that both sides work, on this replacement unit.
Prospective: However, I now hope, and expect, that the replacement unit will be of a better quality/durability, and will last more than just one year. Or else I will have to forget Hifiman (and IEMs) and switch to something like Sennheiser full cans instead... So am crossing my fingers for the better, hoping I can enjoy these IEMs for a longer while and thus keep a high opinion of their manufacturer.
By the way: Regarding the sound quality: Am not a big expert. All I can say is I like them even with my iBasso DX50 (even though some more knowledgeable Headfiers say these 2 don't fit). And they definitely sound better than the Bose QC15 cans I more recently acquired. But the QC15 are unbeatable for peace of mind while in a plane, train or other machine-noise environment (e.g. even while driving), in which cases the IEMs are not offering enough sound isolation at all for me (whatever tips I use), so in such special cases the QC15 is still the better option.
However,neither of these nice and practical headphones (and the DAP) can compete with coming home and listening to the good old Nautilus 804 speakers in my living room, even though I use them 'only' with an AVR (Marantz SR7007) instead of a proper stereo-amp (but I did not expect it to be otherwise, i.e. HeadFi is just not as nice as real HiFi).
So, in summary:
- @ fellow users: be extra careful with your RE-400s, they are indeed ultra-fragile (at least for the units sold back in 2013) ; but do use the warranty, Hifiman is giving great customer support.
- @ HifiMan reps: Thanks for the great customer support, thumbs up, but do hear the warnings about potentially disappointing customers over build quality/durability
- I hope it was just the first production batch that was of lower quality (as I read a few weeks earlier) and that the RE-400s you currently ship out to people (like hopefully the more-or-less-newish replacement unit I just received) are sturdier and made to last.
The Extra Question: Would the RE-400 benefit from a small-priced destkop tube amp (like the Bravo Audio Ocean) connected to my iBasso-DX50? Am curious about maybe getting such a nice-looking and tube-equipped little device either for the bedroom or the office...