I nearly bought a pair of HE-400 today to try against my new HD650....just to be sure and make sure I had made the right decision. I managed to stop myself at the last minute I would like to try a pair, but still just really worried about the additional wieght / size and also reliability to a certain extent.
I must say though I am really impressed with my HD650.....I've read a lot of reviews from people saying they lack bass, but I must say I havent heard that yet......the bass just seems to be right for my listening preferences and female vocals are just so...hmmmmm.
Currently listening to Paloma Faith's Do You Want the Truth or Something Beautiful? via Spotify Premium and it sounds amazing as does Adels' 21!!
Just as an aside...... I am looking to purchase a desktop amp and posibly DAC to use with the HD650. I have seen a lot on here about the Schiit Lyr and Bitfrost (both of which I have on my wishlist when funds and a UK distributor arrives).....but other than those can anybody recommend anything else, I was potentially thinking of the following if anyone can comment:
ALO PanAm and possibly the standalone power supply
Little Dot III - Mainly because it has RCA in and so I could connect my DIY Modded iPod directly to it.