I have this amp and from my experience, it sounds so much better than the Grado RA1 and the MGhead. Much better soundstaging, clean, sparkling highs, tight and well extended bass. The midrange sounds a little laid back when paired with the CD3000s. And the best of all, it only costs about 230...

I'm going to HongKong next week and looking forward to buy some headphones/amps, does anyone know a good place to go? I'm really desperate here, thanks in advance.

I'm seriously considering either of these two amps to pair with the HD600s that i'm getting somewhere in this month, could you please comment on that? I know those two amps are totally different, but one of them must benefit the HD600s better. Your opinions will be highly appreicated. Thanks.

Kinda pointless, just to see how popular headroom is.

There's this guy who wants to trade his 325 for my 4p, what I wanna know is, is SR325 better than 4p? I'm using the RA1 headphone amp. Thank you.