Okay, I'll read through the HD 800 amp thread linked over there. If I do go this route of getting the HD 650s at $350, that leaves more money for the amp and DAC than I originally thought. So, I could potentially go for the Valhalla, or maybe even the Lyr, from Schiit, and pair with a Modi. How would those two amps compare with the Little Dot MK IV? It's listed at $500 on Amazon, however this Ebay seller has it listed new at $315. I rarely buy anything off ebay; is that price legitimate or am I missing something (linked below?
http://www.ebay.com/itm/Little-Dot-MK-IV-Tube-Headphone-Amplifier-Pre-amplifier-tube-preamp-stereo-tube/120912373455?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D23492%26meid%3D8ee9133625ff40858f9d968d82c682fa%26pid%3D100005%26prg%3D10073%26rk%3D2%26rkt%3D6%26sd%3D261093881874&rt=nc
Wow that's a great find. The seller has 99.4% positive feedback so it should be safe. The catch is the $55 shipping, but it's still much less than what you'd pay for on Amazon. The chances are slim that someone has compared all of those amps with the HD 650, you'll probably have to take a gamble no matter which route you go.