So in my Black Cat I am getting a tearing noise on the lower registers. Ax7 side is fine. I hit the input pretty hard with a ‘70 fuzz and then a Carcosa for lead work. I back off on the guitar a bit so as not to blast the front end of the amp with bass frequencies. I play with a pretty bright tone overall which comes through well at the volumes my band plays at. I’m assuming it’s the tube. I’m looking for one that has a great degree of detail and clarity at the higher volumes I play/gig at. Are these tubes not as stout and hold up as well as an ax7 when hit hard?