The new Carvin catalog arrived in my mailbox yesterday. Previously, their DCM marketing had attacked "other lightweight" power amps, so I assumed they were talking about the QSC PLX series. Now they've changed their pitch to attack all Class H power amps, noting the switching distortion in addition to the lack of reserve current needed to reproduce peaks about 60ms apart. The "chart 3" graph looks pretty convincing. After doing the math, it looks like you would need to be speed-picking 16ths at about 250bpm to fit that 60ms peak window. But at a more realistic 200bpm, 16th notes would be about 75ms apart and it looks like this could actually affect the attack sound. So I wanted to put the question out to you guys. Is this just marketing voodoo, or a legitimate concern for speed players?