Hi Lightfla,
I had exactly the same question and asked around a lot. I finally got the answer I went with from a sales rep at Headroom. He asked me what kind of regular speakers I like, and I defined my tastes in terms of my long love with ADS L810s. I absolutely loved their open and airy sound, and, when I added a subwoofer, I was very happy until my son blew them up listening to Magical Mystery Tour. I've never liked home speakers with a more closed, almost muted sound.
So, the Headroom guy recommended the AKG701s, presumably because they would resemble my old ADS 810s. I wasn't able to audition any of the phones I wanted to buy, and I'm still waiting for my AKGs. If they come in and I get an amp for them, I 'll see if I can't give you an update.
russ