So I did buy the DT1350 and have them on my head right now. But I bought them for the subway on Friday, Bloomberg/MTA shut the subway down on Sunday, and it is unlikely they'll be running again until next week from my location. In any case I'm having a blast using them given that I'm stuck at home from the hurricane. I've used them with my iPad, my iMac, and off of my Aikido pre-amp with my Oatley DIY portable tube headphone amp. Playing vinyl through my Aikido brings me right back to the old days. Stairway to Heaven never sounded so good. I've burned through the top 10 of all time classic rock with them, all on vinyl. (Obviously I still have power, and internet access. No real problem where I am.)
I haven't tried any classical yet, maybe later.
"Who'll stop the rain?" ... -CCR, playing as I write this on iTunes off my iMac.