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
Yes, Mogami cables. One of the reasons why the recordings are of poor quality. They are okay at best nothing more. You don't want this stuff for Rowland and VAC. DiMarzio is better, I still keep the RCA pair, but I don't think he makes them any longer. For serious comparison I would try Purist, High Fidelity, Stealth, Jorma, Tara, Wireworld. They might all give an excellent but somewhat different sound. Then it will be a matter of taste.
Rinpoche,
I have an unusual suggestion.
I suspect that you have a good hearing.
Go to www.mundo-flamenco.com ; it is a place that sells good acoustic guitars. Click on the 'guitars' and listen to the guitars that are not for sale. It's MP3 but you can hear the difference quite clearly. If you like more the guitar by Antonio Marin Montero - you probably want VAC amp, if the one by Conde - probably Rowland. They are both great guitars.
That is an interesting suggestion! I will try the guitars. And get back to you. Thanks!!

See, it is clear, cables are very subjective! Also, within the various brands suggested there are different grades. So that is also a question. 

Also, in terms of cables (interconnects), perhaps I could look for something used? E.g., these are available at a dealer near me (I have no idea how old they are):

Nordost Valhalla XLR 1M interconnects. B-stock cable with a minor blemish, functionally perfect. Top tier resolution from top to bottom with an expansive soundstage. $4499.99 MSRP when current. Asking $1895 (in Canadian Dollars).




Rinpoche,
Please if possible listen to the Nordost cable with your system . These are expensive  and you may not even like them once heard ( or you may love them, who knows). This brand of cables does little for me but of course that's merely my impression, others find them terrific. 
Charles,
Hi Rinpoche,

Regarding the interconnects that would be used at the output of the Aeris DAC, I note the following statement in the Aeris’ description:
Transformer balanced XLR line outputs provide outstanding output common-mode noise rejection, eliminate potential ground loops, and ensure compatibility with other equipment.
I also note that it has a 120 ohm output impedance, which although not especially low is considerably lower than in many other designs.

I suspect that those factors will result in that DAC having somewhat less sensitivity to cable differences (at its balanced analog outputs) than would be the case in many other circumstances. Especially if the length that is necessary is only 1 meter, as most analog cable effects are proportional to length.

Best,
--Al