Try contacting
@PETEREK
He makes some very nice 4pin XLR reterminated cables(Or from scratch) for the Z7. Or even Venus audio.
I bought @PETEREK’s cable he made for this HP. It’s very nice and may/probably be less expensive then going out on eBay or something of the sort. Plus he’s a trustworthy guy and it’ll be quality.
Since rebuying this HP, I’ve fallen in love with it’s signature all over again. It’s also somewhat modded and sounds so much better then the first one I owned. The cable had a lot to do with it.
Edit: you want this for a DAP. My bad. Anyway. If anyone is looking for a great balanced cable for their desktop setup, I’d highly recommended going to him on Etsy.