RME ADI-2 DAC FS is it "All That", especially for under $2,000?


I am upgrading my main system with a Mark Levinson No 532H and pair of Tekton MOABs, arriving in the next few weeks. I decided my Music Hall 25.3 DAC should probably be upgraded as well, I have a PS Audio preamp I was planning on still using.

I am getting a lot of recommendations for the RME ADI-2 DAC FS, and some are saying replace my PS Audio preamp with it also. Pretty much every review or even mention of it I can find, comes with descriptions like "End Game product regardless of price" and "State of the art".

Thoughts?
Thanks.
128x128brad1138
I think you would want a USB switch instead of a hub. With a switch you can connect multiple computers to  multiple devices a hub you connect 1 computer to multiple devices. 
thanks. yes, i should have said a USB switch. presumably any of reasonable quality should suffice?

You just don't need to pay this much for what the RME does, unless you want its EQ capabilities for some reason.

Otherwise save your money can get superior, measured performance with the new Topping D90, which uses a latest generation AKM chip.
Yes, I thought about that, but for the extra there is some flexibility for room correction etc. I´ll get round to that once I´ve figured out the basics. And it´s German, for what it´s worth.

Although it sounds incredibly clear, when the volume is set in mid-range there is more audible white noise from the monitors, more than with the old DAC which is inside the pre-amp. Is there any reason why I should not set the volume to maximum and attentuate through the pre-amp?
I am very interested on hearing the comparison of the RME vs D90, I know the D90 measures outstandingly good and 4499 it is indeed a newer AKM but some people which have gotten the D90 have mentioned glitchy performance and said the sound is not engaging as with other similar DACs. Would you mind sharing @OP your upstream source? If you are using DSD with the RME you could take advantage of direct dsd but this will invalidate the DAC DSP and volume control in which case having a preamp still will be a good option.