Similar to the Standard 120S model with shallower/flatter cup to produce a tone somewhat brighter and with slightly greater volume. It’s equally well-suited for low-register playing as it is high-register playing. The 7B is an ideal choice for symphonic tubaists due to its ability to coax extra volume out of the instrument. Named after the preeminent tuba player of his time, August Helleberg from the Sousa band.