This thread makes me wonder.
I may be totally off base with this so please don't shoot me if I am! I'm no expert in high end audio, and this is only what I've gathered from a lot of reading over the last few years. Over at gearslutz.com they talk about something I think they call the 'straight wire' microphone preamp. That's a preamp that basically just takes the signal from the mic and amplifies it with as little distortion or color as possible. In other words, it's very transparent...what comes out is the same as what went in....only what comes out is much louder. FWIR, you can get a very good amp of this sort for under $400. It's made by Grace, and it's highly regarded as giving a clear detailed signal free of color. I would imagine you can get a very good headphone amp like that for around the same price. So what makes people lust after the vintage neve preamps and the like and spend several thousand bucks to get one? It's the color they're adding....though you may wish to call it 'magic' or 'vibe'....it's still basically color as far as I can see. Nothing essentially wrong with that. If I had the bucks for a nice tube amp I'd like try one myself. I'm also curious if I could differentiate between an expensive ss amp and the LD mkV that I have now that cost $200 second hand. I try to keep an open mind, but I have a feeling that the difference wouldn't be all that noticeable unless one just happens to have better synergy with one of my phones. I'm more than willing to be proven wrong if someone wants to ship me one for a test using the k702.