Again: Has anyone tried the AKG C 636 or the c636 wl1?

I use the c535 wl1, thinking about getting the new version c636 or the c636 wl1
Has anyone A-B tested them? Or just tried through one?
If so, did you hear any sound differences between the 535 an 636?
Thanks
Has anyone A-B tested them? Or just tried through one?
If so, did you hear any sound differences between the 535 an 636?
Thanks
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