Here is Ralph's story on how this device came to be. It is only three pieces, and installs by hand on your slide with no tools, and no instrument modification. Below are two high resolution pictures from our print brochure. In other words, you can reach a higher level of fortissimo before distortion. Additionally, the notes speak easier and you feel more secure and confident.
Solidity is added to the sound.
Others can hear the difference, and you can hear it and feel it. One locknut has a right hand thread, and the other has a left hand thread, so when the spindle is turned while supporting the locknuts, they expand. The spindle needs only to be hand tightened, and the device will stay put without damage to the horn. DO NOT overtighten. Mounting on the slide tubes will cause damage.