Tboooe,
I would love to know more. A few details of how the comparison was performed and with what type of music. I have a few preamps these days. The VTL 7.5 mk II & the BAT Rex. The Rex has fabulous dynamics with the signature BAT bass which for me is tops. It isn't dark per say but does not have the smoothness of the VTL. I can actually do some changes internally to alter the sound but haven't tried. BAT has a recommended configuration which I am using. There is a switch that can change the tube setup. Also the current source tubes can be changed. They have plug in boards fo the different tubes. Actually the VTL 7.5 mk 1 is the smoothest. I am waiting on NOS tubes for the VTL to know more. Anyhow, on some music I prefer the Rex on others the VTL. The Rex for me is fabulously dynamic. The VTL is a little laid back. My question is, which one is right / true? Is there such a thing as too dynamic.