So the JBLs I ordered got canceled, so before I ordered them again from a different vendor, I investigated more fully something I stumbled upon in the interim: my Walkman has a noise-canceling feature built-in! It's designed for propietary Sony headphones, but none of them are of the caliber of the MDR-Z7. I tried some Focals I happened to have on hand, but it amplified external noise rather than canceling it, so I presume the polarity is inverted, does that sound right? I already contacted Sony, and they don't have an adapter so that I can use the MDR-Z7, so I'm thinking of buying a cheap pair of the noise-canceling for their microphones and hacking it for my use case.
Thoughts?
Or should I just order another pair of noise-canceling headphones of my choice?