Nope, you just need to have the right size, the size longer, and smaller. If you like deep insertion, go half size smaller than your usual. For me I have no problem with the fit. Not the best fit that I have, but quite sturdy and provide great seal (because of the latex umbrella material). perhaps 10/10 sound quality as per details, imaging, technicalities and timbre. And about 8-9 /10 fit for me.
The problem is you can't try them, and buying lot of size of them are expensive. They come with 2 pair of the same size, so 1 box is either L and L, or M and M. you have to buy 2 boxes to try the right size for you.
@dennarwhal Yes they made the Z1R mids little bit forwarded (for those that feel Z1R mids too recessed, I'm not btw because of our JPOP genre that female vocals are already forward on mixing), and that superb imaging.
I think everyone with Z1R should try this, really worth a try, again I dont have any connection with Pentaconn, just share my humble experiences.
If you order from MTMT you can get two sizes. Mine came with a small and a medium small. But you're right, you can't get an L with any other size. Anyway you conviced me to try them again. I'm liking what I'm hearing so far, although they have come off in my ear a couple times(probably due to being on Monarch 2), so I need to get some of those little nozzle adaptor thingymabobs - anyone know some that fit Z1R?
Edit - actually I suppose I can just make some with some old unused tips.
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