The same person who brought that is also an EE and does a whole bunch of objective measurements for his rig. He managed to get the 120 ohm Bottlehead Crack to produce a nearly perfect 20 Hz square wave response with a non-modded HD800. Screw the rule of thumb for having a damping factor of 8. lol
Listening to it subjectively, it did seem to have a really nice-quality bass response. It almost had the visceral feel that Audeze headphones typically have.
Wonder how 200hz and 2khz square wave response of that setup looks like...
Ugh been resisting the idea of getting a yggy recently, no, at least not now >.<