From the PS1000 thread:
"Thought I'd drop some thoughts on a new setup I've got for the PS1k.
Sold the Woo WA7tp (something about the low end was just 'off') and in its stead, picked up a Liquid Carbon. Right now the AK100ii is serving as the DAC until a pair of balanced interconnects can go between my Emotiva DC-1 and the LC.
In any case, this amp is GREAT with the Grado. This is easily the most realistic soundstage/separation I've heard from a headphone. Things sound so clean and so rich and so
real. The decay on cymbals is just unreal, as are the nuance-y things like fingers sliding on strings or ghosted bass drum hits. Loving this rig right now and I'm hoping for a slight improvement come balanced cables!
Oh, AND i've got a pair of Alpha Primes en route so the wife doesn't have to listen to all of my music with me
"
I was hitting up @Oteil yesterday and I'm pretty sure I was annoying the snot out of him going on and on about how great the PS1k's sound. I'm telling you guys, they are incredible coming from this little amp. I'd been recommended using an SS amp for the PS1k and I'll admit I was skeptical at first, but this really is just a different level of performance than what I'm used to. Sonic. Bliss!