The boost is not the fourth tube, it is based on Yngwies signature pedal and not the DOD250. Trust me it sounds brutal.
Couple other things, the analog noise gate works great as Chris was able still to get great harmonic feedback from sustained notes even with the threshhold at 70%. Also the end user can use any power tube OR combintion of tubes they want. Asked about only 2300 units like the AFD and this has not been determined yet.
-- Sat Jan 15, 2011 8:14 am --
DSL100 Dude wrote:The noise gate is seperate from the boost section. Each have their own selection switch.
From what I seen it is seprate controls but the gate automatically engages when the boost is engaged. Personally I think the boost is something I wouldn't use, plenty of killer 1959 gain even without it. And yes this amp wide open is as loud as any 100 watt plexi.