Let me preface this by saying I first came to Headfi in 2004 when I was looking for some headphones and needed advice. I wound up getting Grado sr80's and a CMoy amp and then departed.. Then a year later, towards the end of 2005, I came back to see what was going on, never intending to buy...

So I'm soliciting your opinions. I know these three are not priced the same and we are talking different technologies, but if money is not a factor, what's your choice? They would be powering two quite different cans, Grado 325i and Senn 580.

Right now I am using Grado SR325i's and will soon have some Senn HD-580's. I also have a PA2V2 and a "maxed out" CMOY built by Eyevancsu. After much careful listening, the main difference I hear between the two amps is that the CMOY is dead quiet no matter how high the knob is turned, whereas...

Like the fellow looking for Grado RS-1 dealers, I am looking for Sennheiser dealers who actually have something in stock in Southern California (preferably the San Gabriel Valley). I am interested in hearing the HD-580 and the HD-595. I called a few places listed on their website and no one near...