Just some rambling... A few days ago I was able to get a new Fender 57 Champ Custom amp. The amp is loud for just being 5 watts. The breakup starts happening around 7. The clean sound nice just like a bunch of other Fender amps do. I swapped in a 12xa7 because I read some folks say that it would break it up much earlier. I heard no difference, so I put the original tube back in. I turned the amp to 12 and rolled back the volume on the guitar to see if I could control the loudness and still get that crunch sound. Did not help at all and sounded soft/wimpy and no crunch. I decided to compare the Champ amp to the Lovepedal Champ (one knob) since it is based on the Champ and in the end to my ears they sounded very close.