Quote: Not at all.

Nice review!     I've been looking at these and the k550s for a while now- I think I'm going to get these.     I had a chance to listen to both(unamped) a few days ago, and I really think the 900x was better in just about every facet.

  Quote:   I guess the site is temporarily down at the moment, or is it just me?

Are these difficult to drive at all? I'm pretty new to headphones, and I'm looking to get into it very soon here... I can get these for $150 + tax(and yes, I mean the 900X), and I've been looking into dacs and amps for the last week or so- I might go with an audio engine D1 since I can get it...