Tom thank you for the great answer. It confirmed my thoughts about the SM57. It really isn't a good trumpet mic. The specs on it have the frequency response peaking at 16,000. My cheap pc headset peaks at 20,000. Along with what you said explains to me why it sounds like it doesn't have a good high sound even though it doesn't have enough bass either. 20 years of mystery solved at 3:45 AM. Beauty!