Bought and put in a OPA2227. Still can't hear much or any difference. D: I think... Not sure. Haha... :D By the way, most of my music is MP3 320kbps. Would you say I'd more easily hear the difference if I listen to lossless instead? Or should I be able to hear the difference with high-bitrate...

Just got my HUD-mini, and it's pretty hard for me to hear the difference between it and MacBook Pro (13", Early 2011), paired with Sennheiser HD598. Wonder if it's my untrained ear, or if the MacBook Pro soundcard is really good, or if something in the equipment must be "burned in"... Maybe I...

When my HD 555 recently broke after like 5 years of use, I couldn't find any other headphones as comfortable as them except the HD 5XX series, so I just went ahead and bought HD 598 - and I love them! :) I have a question though, and if anyone could answer it, it would be great! I use an...

Sorry, but.. bump. (ﾉ´∀｀*)

Will I notice a great difference between MacBook Pro Early 2011 > Sennheiser HD 598 and MacBook Pro Early 2011 > Audinst HUD-MX1 > Sennheiser HD 598 ? The HD598s don't require that much amp, while they do have a impedance bump in the bass area It would be nice if an amp would noticeably...

Hey, my first post here, and I'm kind of a nooblet in the audio area, so please be kind! I've been lurking a lot here while researching audio stuff the past couple of week; thanks for writing such informative posts! :)   As I'm asking in the topic; would it be worth getting a Fiio E7 for use...