 Two generations were produced, distinguishable by their logo.Originally produced in both 22 watt (6V6 output tubes) and 60 watt (6L6 output tubes), as of 2016, only the 22 watt version remains in production, however the 60 watt version remains available in both head and combo versions in second quarter 2017.While the combo versions sharing the same cabinet and pre-amp design, the output transformer, output tubes and single 12" speaker differed.