HD-650's arrived today. Burning them in now. Will play with them on the Yamaha for a few weeks. My short list for amps is now Schiit Asgard, Little Dot Mk IV, and Bottlehead Crack. I also really like the Burson 160 but a little pricey for me.
Has anybody built a Bottleneck? Easy, hard? I'm worried I'll buy it, try to build it, and screw it up. Then I'll be out the money and the amp. On the flip side, looks like a lot of fun and a lot of value for the money.