This Tripowin Seraph's MMCX connector fits IE series IEMS specifically (fits other IEMS of course), within Tripowin's cable range there are a few cable's MMCX connector made specifically for IE series, no mods required, they do specify it in their spec. There are other models with "normal" MMCX connectors that doesn not mention fits IE series in their spec, which you would need to modify.
Looking at the Seraph it seems they only come with 3.5mm and 4.4mm (bal), and I think I need a 2.5mm (bal) plug, my main dap is an A&K Norma SR25 which puts out about 4vrms balanced on the 2.5mm vs 2vrms on the 3.5mm termination, which geniunely makes the dap perform better to me as I don't mind cranking up the volume and if you got an older recording at like -88 dB it's almost mandatory.
I would love a decent modular cable, I got the Kinera Ace, which is a fantastic modular cable for the price imo, just that I got it with 2 pin 0.75mm (for my Blessing2 Dusk) and would love to buy another one with mmcx but I guess I have to do some plastic.. surgery to make the term fit
I'll put in an order later tonight I think, but haven't decided in this moment on whether I'll order a regular mmcx cable and try to chip the plastic rings off, or if I'll get one of the ie 600 specific cables, shipping is a factor (Sweden) so we'll see. but yea, thanks for the input, appreciate it.
I also appreciate all the advice/thoughts given in this thread on tips, so thanks to all of you in here. I'm hunting better tips as well. Like the average owner in here I echo the silicon tips (especially L) being possible to get a good fit with, and when you do they sound absolutely splendid, just that it's way too difficult and often takes me several tries whilst on the go outdoors which just isn't acceptable. Really seems like the nozzle is a bit too shallow and when it works the tips aren't actually that far pushed in, like there's some sweet spot just half way in.. idno. I have good experiences with Spinfits so might get their 145s, I read here that the Divinus Velvet (L) are good, as are the final type E, I never tried these brands but might give them a go, I haven't decided yet, again shipping time is a factor.
The memory wire cable, the mmcx terminations and the tip and nozzle design are a half-miss, but this is just straight up a stellar IEM for me otherwise. Not doing a review as I simply agree with the general consensus on just about everything. I've seen the odd person call neutral-ish on the iem, I wouldn't say it is neutral, but I would say far more balanced across the spectrum than the frequency response suggested pre-purchase (I personally lean towards the later Harman curves in general), it also looks a quite v-shaped but the sound is somehow, to me, maybe.. u-shaped with fine mids, might be tip/seal dependant. I've seen some people debate the sibilance: as someone who can be slightly sensitive to sibilants, especially s's and fs, I did occasionally get tagged by the peak at ~8k so on very voice-forward songs, I eq'd that down 3 dB and with that they're just pleasant as hell to listen to.
edit: put in an order, Spinfit cp145 (L), a multipack of Final Type E several sizes (on this thread's recommendation) and a Jajunsi (2.5mm, 3.5mm and 4.4mm) modular upgrade cable with mmcx terminations that are supposedly for the ie series. Will report back if I have anything useful to say lol