Hello RHA! I've already contacted RHA support with the order number, and I've already received one e-mail back asking for a photo. As I told the person from support, I do not have a working camera at the moment, and the damage is invisible. Let me explain:
The issue is where the cable splits into two ( Y <--). I was trying to adjust the cinch, and might've tugged on the cable a bit too hard (by the way, the cinch is very difficult to use, but necessary to prevent the heavy remote/mic from flopping around). I felt something snap, and when I looked, the the part where the left cable comes out of the metal splitter was thinner than the right side. After investigating further, it turns out that the internal wire was detached from the splitter, but the outer sheath was still attached. Which means that basically, I can't show any damage through pictures.
Does this help? I've also explained this to RHA support, and I'm waiting for another e-mail.
And in case people are wondering:
The sound has been amazingly nice, by the way. Fairly neutral, with a bit of a shift to the warm side. The highs aren't screechy at all (a bit overly rounded, IMO), the mids are fantastic and accurate. The bass is where the warmth shows up the most. My previous favourites, the JVC HA-FXT90 had a quicker bass and higher treble than this pair, so I'm still adjusting. The detail on the MA750i has been outstanding, and the soundstage is wider than most IEMs I've used. The build quality is fantastic too (and the metal is quite nice to look at), and the eartips are very secure (and this is a huge plus, because you would not believe how easy eartips come off on some IEMs).
There are some issues, however. The sheathing for the cable is quite sticky, and the cinch is very tight. This may have contributed to the issue I have. The cable also sticks to my clothes easily, and this can cause tugging. The eartips don't quite fit me, but I've found that the smallest single-flange size works best for me so far. If anyone has tried other tips, let me know! And finally, the wrap around wire occasionally hurts sometimes. I'm still getting used to these, so that final problem may go away. Also, I don't like how the cable is packaged. I feel that there is potential for damage if someone isn't too careful with unwrapping the cable from the.... plastic ... thing - I have no idea what it's called. I've seen elsewhere that the plastic holder thing can cut through the sheathing if someone isn't too careful.