I can’t give a direct comparison to a Classic but the cleans are fantastic. They can be fat and jazzy, thin and jangly and everything in between. The amp gets dirty fast (which I like) and I would say excels at “dirty” clean but in 30 or 35 watt mode I bet you could have decent clean cleans, fairly loud, especially with a lower output guitar. From faint memory of a classic I would say the impact of the EL84’s is very noticeable on what it does to the mids and top end. More Vox like. Have an ext. cab with two alnico’s in it (one a blue) and can’t wait to hear it through that.