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

I am really enjoying the Topping D90. It improved every aspect of sound from my system.  I got it for 630 from Apos Audio who will let you return it but I would be very surprised if you did.  This has the AKM 4499 with other high quality components.  Denafrips uses the R2R topology but is 8-10 wks out.  The Sabaj D5 for 469 uses the latest ESS chip and also got very good write ups.  Gustard A22 uses two AKM4499.  After that the price goes up and I don't know what configuration the other regarded brands use.  

I actually bought both the RME ADI-2  and a D90 just yesterday. I will try them in combination with my PS Audio pre and my Axiom II pre w/walker mod from my other system, and see what works best. I will also try the RME as DAC and preamp.

I have a 60 day return policy on the D90. I bought the RME from the manufacturer, forgot to inquire on their return policy, but unlikely I'll want to return it.

I do use XLR between components for 2 channel. I hook my HT Prepro main outputs to amp via RCA, and switch back and forth. Best of both worlds so to speak. 

Thanks @ghjuvanni. It will take a while to learn, but I am pretty good with electronics. All the DACs I have used have power and source select as only options...  :)  

Brad1138, I'm guessing you purchased both DAC's to A/B them? Please let us know if the Topping is on par with the RME at only $ 630-that would be a great value proposition!

I've had the RME for about three years. I find no reason to upgrade. It's extremely flexible. Also if you find the manual a little intimidating go to RME ADI-2 DAC walkthrough. There is a 25 minute step by step video on how to operate the DAC.