No, the "SB" means "self-biasing" when it comes to Stax transformer boxes. That variant of the SRD-7 has no AC outlet plug, and instead derives its bias voltage from the input signal.
If you want to tell what bias outputs a Stax driver unit has, you look at the plugs themselves. If they have a center hole, they're Normal bias. If they don't, they're Pro bias, and will have "PRO ONLY" text written under them to boot, while any 6-pin Normal bias outlets will read "NORMAL" underneath.
Also, MLE, I forgot to tell you, but the mini-USB cable included with the ODAC seems to be broken somehow. I substituted one of my own, and it works just fine.
Incidentally, the ODAC lacks the audio issues I had trying the Windows 7/8 What U Hear/Stereo Mix trick with my other USB audio devices. I wonder why...might have something to do with its plug-and-play nature.
Edited by NamelessPFG - 1/25/13 at 7:33pm