Thank you for your input, it is well worth considering. Part of my reasoning regarding the Mjolnir is the potential for driving future, more "difficult" headphones, i.e. the Hi-Fi mans, Audeze, or even the Senn. HD. 800, so I was looking for something that could maximize the sound qualities of the higher-end phones, which, by and large, seem to work best in balanced wiring...or so it seems based on that which I have read here on Head-Fi...
So, please keep those suggestions coming...I am listening...
By the way, as I am not an electrical device hobbiest, and therefore would not be able to properly re-solder which ever connections would have to be broken/re-soldered, where might I have that done, so that whatever balanced cables I elect to purchase, so that once all are connected, they would not destroy a balanced amplifier OR my very nicely broken-in 650's?
T. A. Kogstrom
If you're thinking about it like that - that the amp should be for future more high-end headphones as well I'll withdraw my recommendation of the burson and suggest that you simply go for the mjolnir. I haven't heard it but fram what I've read it seems like almost a no-brainer at that price point.
Soldering on a four pin connector isn't that hard but if it really isn't your thing there is usually a fair amount of balanced HD650 cables on the second hand market.