Understand that Symphonic Line also have their own digital sources, have you ever tried their CD players? (Since you already own an almost full Symphonic Line systems, thought you would have gone the whole way with their digital sources ;-) )
The performance of the Tube DAC can go up a few more notches when you change the stock tubes inside to premium NOS tubes as Teajay has done. Didn't know that AA came out with a XLR digital cable. Currently using an Acrolink A2500 XLR digital cable, with a Stereovox XV2 as BNC. Btw, have you seen the new Reference Transport 2 that they just showed at the Munich show, it is a beauty. Next upgrade ;-)
