Hi Raul,
My comment on the PC1 is only related to matching with his phono stage. I have heard the PC1 sound alsolutely killer, but in friends system. (He was coming from a Koetsu Jade Platinum). I'd hardly call the PC 1 dry and analytical compared to his Koetsu. I have NOT heard the PC 1 in my system, so everyone needs to take this into account please. And others have direct experience, so that likely counts for more than my comments.
Sunnyboy, I think the phono stage matching should be a consideration-not a deciding factor (at least on this particular point). .5 to .6 isn't that big. Re: our Nagra VPS: I wouldn't say the tube only is superior-just falls along the solid state/tube typicial things. Tube only more beauty in the mids and a lil sweeter on top. The SS more bass control/slight more detail/lower noise.
My BAT pre and amp allow me to use both settings on my Nagra VPS. I do switch back on forth depending on the recording and my mood. If I HAD to pick only one, then I would pick tube only gain.
FYI, with digital my BAT preamp is at about 65 on it's volume scale, on the Nagra VPS SS, it's about 75-80, with the Nagra Tube section it's about 105-115. Max being about 125 and unity gain at 105. I'd any lower that Skala output (.5) forces me into SS only. .6mv easily let's me choose tube all the time.
Also, if you have not tried a Nagra VFS under your Nagra VPS, this might be the change you're looking for. Surprising increase in clarity, noise floor drops, and focus. Nothing goes backwards.
I have thought about wondering away from my Skala several times, my dealer always says NO. I am thinking about a Triplanar or a Graham Phantom II as my next upgrade/change.
I know this is confusing. And hard to make a decision...I will say the VFS is a no brainer...it's that good under your VPS.