Unlike headphones, amps/DAC's etc don't have the luxury of tinkering with physical and ergonomic designs the way headphones do (cup size, shape etc), so if a certain headphone has a wider soundstage, more intimate sound etc from a DAC or AMP, it is most probably due to the products afflictions on specific frequencies in sound.
I was going to wait to add some of this to my eventual review, but I'll just go ahead and say some of it now.
I am not in the least bit surprised that someone mentioned the V100 has a wider soundstage than the V200. But I'd also harbour a guess as to the difference being incremental at best, and anything more being an exaggeration or placebo on the part of the listener. My prediction as to why the V200 sounds more intimate is actually pretty basic and simple, that being the V200's very subtle colour or should I say, intentional extension to sub bass.
Imo certain frequencies can affect the perception of soundstage, and even playing around with EQ's (especially on IEM's) can highlight this. Less sub bass, lesser low mids and increased highs imo all open up soundstage and provide for a more airy or distant sound. Increased sub bass, upper mids, recessed highs etc, all provide a more intimate, less wide or open sound.
This is not to say that the sound IS actually narrower, only the perception of it, because certain frequencies drown out or encumber others, thus giving that illusion. I.e, increased sub bass taking attention away from that tiny little tap far in the distance of a certain track, a single sound that would have otherwise given the illusion of great width.
Earlier someone posted an email from Fried stating that the V200 was more "musical" than the V100. Many people had no idea what that actually meant, but now that I have the amp to test, I think I have some idea as to what he may have meant.
With the V200, I think the smoothness attribute or discriptor is mainly due to the increased sub bass extension offering up a very moody or black low end glaze and punch, balancing off the highs somewhat. I also think that the amp may have a slight boost to the upper mids, again, probably to balance things out and ensure there is no loss of detail despite the extra sub bass. In order not to stray too far from "neutral" or "true" sound however, all these differences are very subtle.
Whilst these changes make the V200 very subtly musical, natural sounding and smooth, they do have the adverse affect of making it's presentation appear slightly more intimate. I'll save more detailed impressions and findings for my actual review.
Suffice to say, I do find the V200 to be an exceptional amp. For my personal tastes, it is the best solid state amp I've ever tried. Not for everything mind, but on the whole, the smoothness of sound, with that rich kick in the upper mids and addictive addition of some low end oomph, it really suits me well. Suits the T1 even better. Having said that, these changes are extremely subtle and not glaring, so it's not going to offer colour too far from the neutral path.