This is the worst Millenium product that I have ever purchased. I got it to use with a Champ 12 in live situations where I didn't want to/couldn't bring a Deluxe, which you have the room to just hang a mic on. I tested this with an SM57, standard mic used to mic up guitar amps. The clamp does clamp to the amp well, but that is the only thing it does well. The goose neck on it does not allow for proper mic positioning. I could bend the neck into only one real position, and then after a few minutes it would droop back to some other position. I tried it on each side of the amp and also on the top, because I wanted this to work. It just doesn't work well. If the mic position, and ensuring that the Mic doesn't move during playing, doesn't matter to you then this product will do what you want. If the mic position, and ensuring that the Mic doesn't move during playing, does matter to you then stay well away from this product.