I've been talking to a few folks about this for years now and just talked about this last night with a friend. I've wanted to post this for a long time, but had forgotten somewhere along the way. To make one point clear, this is purely a my perspective, and I am not trying to say that I am right. I would like people to really think about this though. While acknowledging that there is such a thing as soundstage and imaging, i.e. "headstage" with headphones; when it comes down to it, discussion of the differences are nonsensical in the overall scheme of things. I know many long time friends and readers know that I was "headstage" retarded years ago and only gradually started to pick this aspect of headphones. I actually think there might have been a process, because I came from speakers, where I had to slowly learn how to hear "headstage". Still, headstage is one of those things I am not too greatly concerned about. The illustration below should explain why. Headstage is really not the same thing as soundstage. There is a huge huge aspect of stereo sound reproduction which headphones cannot reproduce. This limitation will make certain qualities of amps and especially source more difficult to appreciate or discern with headphones.