Michael League has been using this on recent tours over his TTE 500, most likely due to it's smaller size and therefore easier transportation. Can be seen on most recent live videos - but can see it in high quality during the performance they filmed for Dunlop: https://www.youtube.com/watch?v=IE9I6NrE2S0 (there's a pan shot at 3:20 where you can see it)more
Tube warmth is the finishing touch on an otherwise already perfect amp. It has a musical 4-band EQ, two inputs (one that supports XLR connection from an upright-type pickup/preamp including phantom power switch), adjustable line out send, FX loop, and two extra MarkBass EQ settings: VPF for an adjustable "smile" EQ, and VLE which simulates old amp sag and high end loss as you turn it up, for a vintage sound. It weighs only 8 pounds but has monster power, with 800W into 4ohms. I use this amp for virtually every gig now.