Distinguished SOTW Member/Forum Contributor 2008
From what I can find, it seems that the effect of different resonators is another grey area. The only consensus seems that resonators give a horn more volume and that pads without give a horn a smoother, richer tone. I sure don't need to be louder, and like some depth in my tone. When did resonators become standard equipment? Why are they so preferred? Why are there so many different ones? Are there any benchmark comparisons?