Hi guys, I'm new to this forum, so please bear with me.   I just got my HD600 recently and now I am looking for a suitable amp to make them really shine. I listen mostly to pop, country, jazz, rock music (with lots of vocals), but currently I don't have any source/file higher than CD...

I have been using Sennheiser PX100 and really like it so far. But since the last time I bought a pair of headphones is 5 yrs ago (yes, my PX100 is that old), I suppose I'm due for an upgrade, no? :p   Any recommendation for a great new pair? I am thinking either SR60/80i or M50, but my...