Burson Soloist 3X GT - Grand Tourer balanced headphone amp. The new 3X GT is built to the max of performance possibility, with a new dual mono internal design, ultra high power output and silent fan cooling. Silver finish with red volume and buttons, as pictured.
Unique features of the Soloist 3X GT are:
3 levels of hardware crossfeed to choose from
Noctua silent fan cooling
Dual mono top of the line Muses volume controls
6 swappable Vivid V6 op-amps
Review at soundnews - long in depth comparisons with other amps and power supplies.