Presets and amp settings that are best for Marshall or Fender amplifiers, with EQ for rock, blues, grunge and a other tones & styles.

They are very aesthetically pleasing, but at €1340 per matched pair they'd better sound absolutely sublime too! [attach] Nice tubes ....

This is all simple LM741 circuits, it's so useful, LM741's general purpose single OP-AMP. UA741's high performance monolithic OP-AMP on single silicon chip.