The biggest difference for me was how it tamed the some what dry and analytical nature of the HD 800. Those amps really gave the HD 800 something enticing to listen to for long hours. Separation between instruments and the airyness was just incredible. It was a huge difference, and made the Burson sound congested in comparison. I also enjoyed the lower extended bass and how the tubes took that edge off the treble. The overall presentation was much better for me, but then again you pay a hefty price for the difference. But that seems to be the way on Head-Fi, you pay premiums for subtle differences, but damn it is sweet.
that makes it supperior as Audiophile amp.... but I am searching for production amp.... all this tube smoothing out and whatever ofcourse it sounds better,but question is witch one produce sound that is closer to the waveform that its supposed to replicate
it would suck making tune that sounds good on such amp but then realizing the transiensts are little too sharp elsewhere