last night i played through a mates ENGL savage 120 and noticed it only has x2 output power tubes (2 x KT88) this popped up a lot of questions in my mind. KT88 is typically rated for 40-45w max plate dissipation. if biased at 66% max plate dissipation, that’s (2 x 29.7) = 60W isn’t the ENGL savage 120 supposed to be a 120W amp? am i missing something? what is going on here? the same could be discussed regarding marshall amps with EL34 tubes. EL34 max plate dissipation = 25w. if biased at 66%, thats 16.5w per tube. so really, a 50w el34 marshall is only capable of up to ~33w output. or a 100w el34 —> ~66w on my 2204/jcm800 50w clone, i took out the el34 and replaced them with kt77 tubes. these are rated for 35w max plate dissipation. with these i biased them up to 60-65% and which calculates to around 45w. still not even the full ‘50w ouput’. my 40w SLO-inspired build has 2 x 6L6 power tubes. 6L6 max plate dissipation = 30W can easily bias these up to 20W each (66%) and this actually achieves the 40W output (40w output transformer) i’m starting to believe that advertised output ratings are only a reflection of the maximum power output that the amp’s output transformer is capable of... even though the power tubes will never achieve this power output.. is this right? what else is going on here? i just can’t get my head around the ENGL savage being advertised as a 120W amp when it has just x2 power tubes with a 40-45w max plate dissipation rating... there’s gotta be something i’m missing..