So, I ripped apart the ex800 cable I bought, and just used it for the connectors. First time making an actual cable, so, I'm happy. Copper is from btg, 26 gauge. Apparently I bought the biggest y split possible, which I dont like for an iem cable but oh well. I plan on making an 8 or 16 strand with the same copper at some point. What I find really odd, is, it sounds better than the 8 strand 4.4mm copper cable I bought off eBay, and I don't know why. Im not much of a believer in cable differences besides copper vs silver, so maybe the ebay cable has a fault or bad solder in it? I switched back and fourth, and as much as I tried to convince myself theres no way they sound different...they do. My makeshift cable, that I had no expectation of sounding any different, has better bass texture, and seemingly more resolving upper mids, with slightly better treble decay. How? I'm seriously irritated, because it doesnt make sense. I need to get another quality full copper cable compare, because really, it has to be some defect in the ebay cable. I'm really weirded out by this. If its in my brain, I'm even more irritated tbh.
For neutral sounding or TOTL IEMs, I often find the stock cable works best with the IEM because it's tuned with the cable in mind. For IEMs like the ER4SR, although I have the option to change to a much more expensive cable (look at my signature, I'm a cable believer), I find that the stock cable sounds truest to its intended sound signature. I suspect it's the same with IEMs like the Andromeda + EX1000. You notice some incremental improvements with a new cable, but the feeling fades and you often go back to stock.
Now, if you think an IEM + stock cable's sound signature sounds "off", ex: too much bass, swapping a cable does help in this regard, ex: a silver one for more treble extension, forward mids and soundstage. However, if you're thinking of getting a cable as an "upgrade" to make it sound "better", it sometimes doesn't work out the way you want it to.