Anyone out there using SONAR X2a 64-bit and UAD-2 System in Windows 8 Pro 64-bit? I'd like to know if such a setup is possible and, if it is, how well it works.

It is possible and it works very well. I actually just got an Apollo to add to my two existing UAD-2 Quads.

   It's working for me also. Windows 8 pro, Sonar X2a and a UAD2 Solo. 
    
    
 

Thank you for the reply, djtrailmixxx. The reason I asked is because I was told by UA that Windows 8 and Sonar X2 are not supported in relation to UAD-2. I intended to go for a UAD-2 Quad. I am also using a RME (Fireface UFX) interface.

joeb1cannoli
   It's working for me also. Windows 8 pro, Sonar X2a and a UAD2 Solo. 
    
    
 

Thank you too.

Works just fine for me. No problems, no issues. This config in service for ~ 6 months. 

Yes,  
 
WIN8 PRO, X2 x64, UAD2 Quad and Apollo Duo with TB all working on my PC and behaving greatly. I even got one of those multi touch screens for the console view and mixing.....  all is working tremendously.... and yes, when UAD said it doesn't support a configuration it just means that they will not offer any phone or mail support not that is doesn't necesarily work.
 
Good luck with your set up.
 
Jim

jkleban
Yes,  
 
WIN8 PRO, X2 x64, UAD2 Quad and Apollo Duo with TB all working on my PC and behaving greatly. I even got one of those multi touch screens for the console view and mixing.....  all is working tremendously.... and yes, when UAD said it doesn't support a configuration it just means that they will not offer any phone or mail support not that is doesn't necesarily work.
 
Good luck with your set up.
 
Jim

Thank you.