Pharmaboy
Headphoneus Supremus
Hmm... Interesting... That sounds like the difference I hear sometimes between my Onyx rig/LP rig and the Yggy A2/V-281 rig. A wider and deeper soundstage, more airiness and more extension, and maybe detail at both ends of the spectrum, although I have never had any reason to think that the Onyx is rolling off any of the treble or its details.
I still have to combine the Onyx with the V281 in order to find out how that would comparatively work out though.
I'd be very interested in your impressions of the Onyx/V281 combination--because that's what I would use an Onyx for if I got one.
The V281 is my main preamp/headphone amp (I have others, but it's the very best).