Not sure if this has been posted here, but in case it has not, here is info. This amp looks kinda interesting.

http://www.ssaudio.com.au/lycan-op-amp-test-bench/

Lycan Headphone Amp / Preamp / Op-Amp Test Bench

If you’re reading about our Lycan it’s because you’re a perfectionist who realizes everything in the signal path makes a difference to perceived sound. Serious DIYers often ask how we test our own Supreme Sound Op-amp designs. Good question. We’ve constructed a powerful, totally transparent in-house op-amp test platform that makes it easy to hear the actual sound of any single or dual op-amp you plug into it. Switching op-amps is a snap with absolutely no soldering! We call it the Lycan. Marking the launch of Supreme Sound Audio, or SSA, we’re making available the Lycan so you too can hear the difference between op-amps and enjoy its remarkable headphone amp and preamp functions!