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
Hello everyone. I would love your input on this. Today I went to hear a PS Audio amp (BHK 250) along with either a PS Audio DAC, a Sim Audio 750D DAC/cd transport and at one point we added in a VTL pre-amp. It sounded very good. My question(s) are: what do you think of the PS Audio BHK250. It is a hybrid (though you all probably know that). And what do you think of the SimAudio 750D instead of the Jeff Rowlands Aeris DAC? Any insights you could provide would be great. There are so many great pieces out there, it is now hard to figure it all out!!! Input is welcome. And the VAC 200 is not in yet so no news to report on that front. 
rinpoche,

I feel your pain. Unfortunately no one can tell you what to buy. Only your ears and wallet can decide what's best for you based on your sonic priorities. It's a pretty easy decision, what sounds best based on how much you want to spend. 
Rinpoche,
I must agree with ricred1. It's all up you once you've listened to a component. You'll get opinions that run the spectrum,  unavoidable due to the subjective nature of it all. The new PS Audio BHK  has received excellent reviews Thus far. You're correct, there are many really fine products available. As has been said here before trust your ears and pick what moves you the most emotionally. 
Charles, 
Very solid choice on paper for your speakers and would appear to mate well with tube preamp if desired.  

Rinpoche,

I know everyone is dying to ask but is not asking.
So, I will ask the obvious - have you decided what to get?

J. :)