How important are the differences between the A&K sr25 and its mkII model? How do these compare to ibasso dx240? I am replacing a fiio m9 that has awesome sound quality, but a frustrating, nonresponsive UI.
What are your views on the Pioneer dj hdr-x10? I want a portable closed back, over the ear headphone for travel that is efficient enough for the astell and kern sr25.
I'm looking for suggestions and sources for the cabling and connectors needed to use the Drop Aeon Closed X as a balanced headphone with the Astell and Kern SR25 mark 2 digital audio player.