G08 playing RBCD against Denon A11 (I think it's 5900 in the states) playing SACD [titles from the same stereo masters like Stevie Ray Vaughan - Texas Flood, Bucky Pizzarelli - Swing Live or Diana Krall - Love Scenes, comparing stereo PCM from RBCD to stereo DSD from SACD] -compared those many times and it's a very hard call. My option would go (on a quite thin margin) to the G08+RBCD. Same amplification, same speakers, inputs with gain adjusted to compensate for level, A/B switching. Would also note that G08 is interconected on XLR with the preamp while the A11 goes in unbalanced.

Just a personal take on this matter. But maybe my ears are getting old.

M kit : G08 502 557 507 2xDSP5k