Originally Posted by KamijoIsMyHero
yea, I follow headfonia too and will wait for reviews
the last statement is intriguing but even the 02 is $45 less, I don't want to start a ruckus but at that point, if it is indeed comparable to an 02, then I am paying for the portability, a bass boost and a better volume control for low volume use, 2 of which I don't really care much for, logically the only thing I can base my purchase with is the value of the sound quality
Well you need to understand that the O2 and the C5 are designed with different goals in mind.
The O2 amp is designed to be audibly transparent, cheap, can be diy by anyone, and can power all headphones with the exception of certain types like the akg k1000. Because of that, the parts are cheap and of lower quality, uses an analog volume pot, 2 9V batteries and is more transportable than portable.
The C5 is designed to be highly portable, to have little channel imbalance (the channel imbalance in the O2 is quite bad), and to be totally transparent. So because of the higher quality parts used, and the digital volume pot, it is more expensive.
Sound quality wise, both are 100% neutral, with O2 having more power to power the demanding headphones, and with the C5 having less channel imbalance. So depending on your needs, one may be better for you than the other. Personally, i have a O2 and ODAC on my desktop, and will be using the C5 as my portable amp. I dont have any pockets that can carry the O2.