interesting... I am indeed looking for a "non leaking" top quality headphone to complement my "very leaking" TH900, and I was thinking buying either an AlphaDOG or a SigPRO, because I understood that they leak much less than the XC.
--> Do you consider the XC as a "non leaking" headphone ? Do you think you could use it in bed near your wife sleeping ?
--> How the XC pair with the AK240 ?
I had tried X and XC with AK240 (singled ended mode) and prefers the 901+discrete card (also SE) over the AK240. I think while AK240 has a much improved amp section, it's really designed and tuned for CIEM/IEMs for portable standalone use more so than with full size cans. I would be interested to see how the AD or MD works with AK240, or one of the new HD6/7/8s that I should be able to demo soon.