It's good, and it's LOUD!!! I find the Digizoid ZO has better bass though - and the claims of the caps "burning in" are ridiculous. Still, quite good for an audio buff looking for clean sounding amping,...I like it quite a lot. Plus, I don't hear static with my Sony MDR-V900HD's like I've heard with some of the other "cheap-o" amps I've had (FiiO E3, PAVA2, even the Digizoid Zo).
I do have 2 issues so far: First, it's makes quite a bit of noise & static when you turn it off,...annoying but not a deal breaker. Second, the volume seems to reset after you turn it off. That means I have to readjust it every time I power off & back on again. Annoying, but not major. This is actually a hearing saving feature IMO, as I switched between this & the ZO and nearly had my ears bleed!!! No a good feeling,...
Overall it's quite a nice device,...I'll be testing the SQ over the next few days - Thanks BennyBoy!!!