I’ve posted before about the inconsistent size of the foam in the MH755 nozzles before.
Here’s a perfect example:
It’s hard to tell from the photo, but the left most piece is noticeably larger than the middle piece. And yes, that one on the far right was literally just a ‘crumbled flake’ of foam. It didn’t tear when I removed it. It was sitting in the nozzle like that.
These pairs had a noticeable difference in sound from L to R sides and from pair to pair.
Both 100% genuine, both sealed, and both factory fresh.
Once I removed the foam, both sides of both pairs all sound the same now.
I don’t expect much from a $6 pair of mass produced earphones. But it at least goes to show why at a minimum I do a basic disassembly and inspection of every pair I receive, correct any defects, and match up pairs whenever required.
This is easy to do before recabling, as once the stock cables are removed, there is no true L or R per se. They’re all identical, so they can be matched up in pairs (if required) before recabling or adding mmcx jacks.
It is not that easy to recable this iem. I have ordered cable from Ali. But I could resist myself. So I used my **** cable. First it is not easy to insert the cable through the strain relief. I had to strip the outer layer and then insert the cable. Then I have not done soldering for a long time. So it is very tricky. I had to solder and desolder so many times. And then the shell would not seal beacause there is not enough space inside. I thought there will be some problem. But finally I did it. And it sounds fine. I think it is a very good iem for the price.
