Yeah, but I'm not sure how you can claim a warranty by stating that a stock cable has intermittent problem with a 3rd party IEMs. Unless if you are experiencing this problem with IT03, not sure what iBasso can do for this guy...
The issue is actually in variation between different connectors. CA uses custom berylluim copper mmcx connectors which have their own tolerance. iBasso uses another brand/material mmcx connectors with their own tolerance. Tolerance always goes as +/- of the nominal spec, where you can have one side of the connector off by "-" and another side with "+" dimensions. The result is a looser connection and intermittent contact which is a lot worse in mmcx vs 2pin. I came across issues with 2pin as well where a standard 0.78mm spec has a tolerance of +/- 0.02mm and some cables could be loose, but you can slightly spread those pins to make them fit tighter. With mmcx - you can't do anything.
Bottom line, IT03 stock cable with CA iems could be a hit'or'miss...
Thanks for the info.
Even when the MMCX are in the correct tolerances it seems many connection issues arise. Fidue A83, SE215, and now the IT03 thread is becoming populated with faults. It upsets me in a way ,the earphone company (whoever it be) order these connections with quality in mind, they use it on their product and they fail. The end result is people saying "well I was considering (name of earphone) but the connection problems turned me away" Its just a lousy solution that never seems to change after years and years. I'll take a recessed 2-pin connection anytime over MMCX.
My IT03 are OK, no issues so far...