Jeff Rowlands Amp and Dac vs. VAC amp and DAC


Hello, I am new to this forum but I have a question. I am trying to pair an amp + DAC with my Wilson Sabrinas. I have listened to Jeff Rowlands integrated with the Aeris DAC. And the VAC Sigma integrated with the Aeris DAC. Price is a factor and so is space. Does the 625 need a pre-amp? Any suggestions or thoughts? 
rinpoche
rinpoche,  if you need 1 meter length and want to buy yourself time to look around and decide upon what you really want without having to rush into a purchase I have an extra pair of unused balanced Silnote Audio Morpheous ICs that you can have and be yours to keep at no cost to you. If you're interested in my offer send me a message as I'd be happy to help you out; if not no problem. 
Facten,
That's such a nice offfer. There are good people on this site. 
Charles, 
Yeah, excellent move. Rushing to spend $1000 or more for a cable that might not be the best choice would make little sense. I would be happy to hear that Mogami balanced works great, but more likely something more expensive will be required. The biggest difference between DiMarzio and Purist was in the midrange, though both the bass and tremble were better too. Still, that DiMarzio was very clear balanced and dynamic. And the difference was bigger with digital. If Mogami is similar to DiMarzio it should also be something like that, that's good but not good enough.
rinpoche you can send me a message through Audiogon email and then I can give you direct contact information