Cool:
Thank you to the OP! (I was going to post the same question in this forum as well and kind of hinted at this in the 325 owner's thread).
I'm looking for a portable amp for my gen 5 ipod and Grado 325iS cans, and now - apparently - a home amp as well

So, i was thinking about getting two amps from Headamp: a Pico / DAC and a GS-1.
The idea would be that I could use the Pico with my ipod (as an amp via LOD) while on the go; at the office I would use the Pico as a DAC / amp with my computer.
The GS-1 would be at home and I could hook the Pico up to it as a DAC / Pre-amp.
Does that seem reasonable? Does anyone know if the GS-1 is at the end of its life (product wise) - it seems to have been on the market now for 4 or 5 years. Is this a reasonable solution? I would be buying these amps without listening to them, but they booth seem to have good reputations and I've heard that the Pico matches well with the Grado 325is. I also have an old pair of SR60s as well, which I guess will benefit from the Pico / ipod combo as well?
[edit] = another amp option coming to mind could be the WA6?
Any thoughts?
Thanks!