Just got my MA750i's, and I must say, compared to my old MH1's and UE500, they are definitely a step up. Much greater clarity and soundstage without sounding too clinical, a huge recommend from me. Several things so far (some nitpicking involved, so bear with me):
1. Don't know if it's just that my ears are abnormally shaped, but I can't get a very deep insertion with these. Don't get me wrong, they isolate great right now, especially with the large double-flanges, but it's not quite as deep as my MH1 or especially my UE500. Guess I just need to get used to it.
2. Would it kill to make the tips slightly easier to insert? I mean, if I'm given a tossup between ease but easy-to-fall-out (like my UE500), or stiff, then of course I'll choose stiff, but maybe don't go that overkill?
3. There's a slight hiss from my sources when I plug it into any source except a Fiio DAC (don't remember which, borrowed someone's). Again, just nitpicking, but if I really concentrate on it, I could somewhat hear it.
4. It's heavy. Not gonna lie, but I love it because it looks like I could beat someone to death with it, or if I have to choke them with the cables, again, pretty sure it's gonna hold. But it also means that, since I was spoiled with uber-light headphones for years, it's gonna take some getting used to.
5. I wear glasses, and it fits fine. I actually prefer to have it with my glasses on, as I can tuck the cable inbetween my head and frame, and 'lock' it even more securely on my ear.
6. Since my phone uses OMTP standard (as opposed to CTIA which the world now uses), I have to use a OMTP/CTIA adapter which flips the ground and mic around. I use this for my UE500, but when I use the adapter for my MA750, my phone doesn't detect the headset. Can you guys think of any reason why?
7. Case. Looks nice, but functionally not as great as a dedicated hard case. Strange why the MA600 would have a hard case, but this wouldn't. Still, if this looks as tough as I think it is, I don't think that'll be too big a problem, since cable shearing is gone when you have a case.
8. Tips were covered in lint when I opened the box. No big issue, just cleaned them out when I saw it, but you guys should really see why the hell that's happening.
9. Sound quality. I'm not the most descriptive person in the world, nor do I have the knowledge to describe the sound with some justice. The best I could come up with, is that the soundstage is much improved compared to my old earphones. I can hear minute details when my other earphones couldn't. Sibilance is there, but it's so damn minute with there's no EQ, it's a non-issue TBH. Mids are a bit repressed, but that's a given. Bass is there, a tad slow IMO, and it's obviously nothing like my mate's Beats Tours, but then again, I can hear vocals on my earphones.
One thing I've noticed with these, is that it's a bit of a mixed bag with crappy recordings: watching TV series, with their dreadful audio sampling, actually didn't sound dreadful at all. On the other hand, some Youtube music sounds as though it's off-phased (not quite, but you get what I mean).
10. Personally, I use an EQ to tidy up the bass a bit, and get rid of some of the bloat. However, compared to my older canalphones, the changes are much less drastic.
Since this is my first 'expensive' purchase, I don't really have a frame of reference to compare to. However, I would say, that listening to it for an entire day, then going back to my older canalphones, I can appreciate the attributes of it.
I would recommend that to anyone, but since all of my friends buy either Beats or generic $10 earphones, can't really recommend them to a friend (if anything, they'll scoff at me).
One thing, and this is directed at RHA: are there any places where I could grab your hard case in Australia? I'm considering grabbing one just in case I go nuts with it.