This is the head that I used to record the newest (unreleased) Miss May I album. I powered an 8x10 with this head for all 14 tracks. This is the new upgraded model of the head I tour with, and I have to say this version gives it quite a thumpin. I really enjoy this product, and probably will add one of these to my live rig in time. Very transparent clean tone, with the perfect amount of tube warmth. Auto bias feature is a huge plus as well