I agree on that. That's the reason why I use an HPF. Since then I can push them hard without any issue. However, I used the Ampeg 610HLF and could also make it fart. I guess I just like massive low end tones. But I agree with the fact that the PH 410 seemed to accept my massive tone a bit better. Still, I prefered the cristal clean of my SWR.In my case, I could make the SWR cabs I mentioned fart out by pushing them hard
Tough room.