I personally haven't tried either of these new Audio-Technica IEMs.
Yes, I really like the clarity of the RE-400. It's becoming increasingly apparent that the increased midrange clarity is what I was missing from all of the other IEMs that I've tried. Well, I guess my Brainwavz M2 and ProAlpha had midrange clarity, but they also were more strident/peaky than the RE-400 and with a much more congested soundstage (i.e., less separation).
If I will miss some clarity with the Fidue A63, do you think there is something that comes closer to the RE-400's midrange clarity that also contains the added warmth of the A63 for $75 or less? I understand that I'm not going to get the same amount of clarity as the RE-400's, but I'm wondering if there is something a bit closer to the RE-400 than the A63. Using your spectrum, if the A63 is like halfway between the GR99 and the RE400 in terms of midrange clarity, is there something that is between the A63 and the RE400? Someone suggested the Zero Audio Carbo Tenore to me, but I don't think you've heard that one yet (from reading back through this thread).
The sweating thing has never been an issue for me, so no worries on that front. I've been using non-sport IEMs at the gym for years and have never had a problem. Of course, now that I said that, I will probably develop a problem! Seriously, though, I think it's smart to not use the RE-400 at the gym given the durability issues.
Good question. I think the answer is no - the only way you could get RE-400-level clarity in that price range is with something that has brighter treble, but of course that can create its own problems. I'm thinking something along the lines of the LG Quadbeat F420, which is superbly good in the clarity department and costs very little, or the VSonic VC02.
To all those who own or have experience with the UE600/700 IEM's,
What's so bad about the UE600/700 cable? I've heard some not-so-great comments about the longetivity of it. Any thoughts? Experience with it? I haven't had it for long, but it seems durable enough if I am cautious.
Also, any general maintenance tips for the cables of headphones or IEM's? I find that many of my headphone cables short out so I have to replace the cables and it's annoying because of how often it happens.
The nozzles of IEM's worry me as well. How can I maintained how much damage does earwax or debris in the nozzle cause? I always get scared when I see things in the nozzle and I don't want my earbuds to get damaged.
What suman134 said. It's not the worst cable and not the best. That sort of cable was pretty popular a few years back but other manufacturers have been moving towards thicker cables and cables made with harder materials on the outside. Of course the UE600/700 were originally released in 2008 or 2009 and the cable hasn't been changed.
If you store your IEMs in a hard case when not in use and never pull on the cable for any reason they should last quite a while. A q-tip with a dab of peroxide does the trick for cleaning mesh filters. If your IEMs don't have filters you'll need a cleaning tool to scoop out any build-up.
Hopefully not the whole thing at once...
I personally haven't tried any new JAYS products since the t-JAYS, which were just OK.