Stomvi Dynasound kit

The Stomvi Dynasound trumpet enhancement kit offers an alternative method of adding mass as a means of achieving a denser, darker, more compact sound.

The kit comprises a set of metal valve guides plus two sets of counterweights as a replacement for standard plastic valve guides.

The counterweights are yellow brass and nickel silver, the former recommended for B-flat instruments, the latter for trumpets in C.

Also included are two sets of screws (standard and extra long) plus an allen key for disassembly and replacement.