kickass as it gets. this "low" watts system gives you the vibe you can look for from an all valve amp, allowing you, in the various but consistent range of sounds you can get from the EQ, to have the warm and saturated sound you seek at all volumes, from your little sad room to medium to large stages (i'm matching it with an ampeg pf 4x10 and i could take painting off a quite big pub's walls with less than half volume).