I just thought I would drop in with a quick note. I have been listening and burning in both my new balanced Mad Dogs 3.2 and my NFB-28. I recently switched back and plugged in my original Single Ended (1/4") Mad Dogs v3.2 to my new NFB-28.
I have only compared it with one song that I am really in love with (so I know alot of the cues and different parts of the song to look forward to) and what I immediately notice is that
the single-ended version sounds a little bit dark, sort of cramped, or closed in whereas the
balanced version sounds wider, having more room for minor details to be heard. I am not sure if this is what you guys refer to as a wider soundstage, but that was my impression. I am definitely thinking about an all balanced setup from now on, and will most likely be upgrading my single ended version of the Mad Dogs to the balanced version of the Alpha Dogs or something else.
Oh, also
the bass is more present on the balanced version. I believe it is subtle, but noticeable. I will do more listening now that I was able to steal my single ended Mad dogs back from my fiancee
EDIT: Had my fiancee listened to both and she can definitely hear a difference. Her words for the single ended version were "sounds muffled" and "I didn't realize something could sound better than these"