I picked up a 4050 this weekend. Love it! I've only used it on a 4x12 so far. It has a very VERY clean, flat response! I can't even tell that it's there! I cannot wait to try it on a singer's voice. Trying to figure out a use for the figure 8. Maybe I'll put two cabs facing each other, and the mic in the middle. I'm very stoked!