What is the best sounding DAC at $2000-$4000?

Thank you very much for your suggestions because truthfully that is all I can ask for because I do understand it will vary from system to system. I have heard the Weiss and Auralic on my system and on my friends system; truthfully I was surprised at how close they sounded because they are not close in price. I will look around my area and try and find an Ayre dealer and a couple of other DACs that were mentioned.

Should I step up another $1000 and look at more expensive DACs or does it make that much of a difference? According to several friends of mine you will get in to the law of diminishing returns.

It is interesting to hear all the positive comments on the PWD but then I have read the Zodiac Gold + Voltikus when combined is slightly better and this is what is driving me crazy. I am always concerned when spending this kind of money that there is a new flavour every month. Is that the problem with dacs; are they just strictly preference and money really doesn't buy you a better dac?

I would just like to thank everyone and at $2000-$4000 I did try several dacs and finally bought what I considered the best match to my system. I would like to say that I really appreciate all the advise.

In my system and this may only apply to me but after trying 5 different dacs I keep going back to the Auralic ARK MX+. I will tell you straight out some of the other dacs were better in certain areas but I just could not push myself to spend 3 times what I paid for the Auralic to gain small improvements; sorry I am a little cheap that way. The Auralic is breaking in nicely and at $2000 I like how it works with my system.