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
ricpoche,
at some point you just make a decision knowing that nothing is perfect, you will always have people telling you what you should do or what's better(despite the fact they probably haven't actually heard the component). It took me a long time to realize my ears are the only ones that count. I submit it's great to ask for opinions as a way of narrowing down what to listen to, but "your ears and wallet" will make the right decision for you.
I would say we maintained a relative neutrality, most certainly when it came to the wallet. I did hint slightly that LAMM could be the best choice from purely audiophile perspective. But there are other factors here at play, namely aesthetics, convinience, size, familiarity, reliability. And I only did it because I think I got a pretty good idea of what Rinpoche wants to accomplish.
I believe, we've been good and I find your statements totally incorrect and irrelevant when it comes to this thread.
By the way, what makes you think that nothing is perfect? This implies that you know everything. What a wonderful arrogance.
I have learned from all of you. In the end, it will come down to 'my ears and my wallet' -- and your advice has helped a lot. This gave me a forum to discuss and learn. 
Getting the amplification, speaker, room part of the system optimized together to a good degree is the most critical part to get right technically.

With that you have a solid foundation to work upon. The rest is much easier to get right as long as one knows what kind of sound they are seeking to start with.

You can’t hit the target exactly without a solid foundation to stand on or if you don’t know where or what the target is exactly.