Quote:
Originally Posted by
MrGreen 
Hopefully we won't have to listen to hoards of morons who praise nwavguy as the saviour of bargain amplifiers when you can get comparable or better performance for less, and have been able to for a long time; as though he is some kind of messiah to bring about unique designs and ideas, instead of entry level knowledge and plagiarised boards.
I think we've been through this before, but AFAIK with a unique PCB—and the PCB routing and parts other than the DAC and USB receiver ICs obviously being the actual work involved in this kind of electronics—it's not plagiarism. Unless you're saying that he and Yoyodyne actually copped the boards and the whole thing from somewhere else?
Anyway, I agree that ODAC at $150 is not particularly a steal, definitely about entry-level knowledge. For O2, depends on what you consider comparable (comparable with respect to what actually matters, considering headphones are usually more of a limiting factor anyway), what headphones?
Aside from a few basic attributes and situations (e.g. noise too high for IEMs, 5x gain too much? etc.), you're probably just better off picking whichever looks and feels better to you, anyhow.