10th Anniversary. This amp is nothing short of amazing. There is just something about the organic response and feel of tube rectification that I love. The clean tones are huge, dimensional and piano like. I love two-rock cleans Custom Clean, Classic Reverb, and the 10th Anniversary is as good as it gets. Where this amp really differs from the typical two-rock is with the gain channel. While this amp can do the smooth singing lead tones it can also do a more agressive organic lead. Somewhere between a cranked blackface and an early Marshall JTM. I'm looking forward to really digging in an exploring this amp. So far I'm very impressed.