I'm several years into Head-fi. Having owned the HD600, and currently owning both the HD650 and HD800, I could call myself a Sennheiser fan. I've also gradually grown into gear, starting simply with the Nuforce iDo driving my HD600's, then the iDo connected to a Little Dot MK3 tube amp, and...

OK, so I have the following set-up: - iPad as a source running FLACPlayer by Dan Leehr - Connected through Camera Connection Kit to Nuforce DAC-80 asynchronous USB - Connected via Van Den Hul interlinks to Little Dot MKIII running Yugoslavia 6HM5 driver tubes and Russian 6H6P-I power tubes -...