The original Hirsbrunner Tuba CC-290 with five valves was produced in 2003. It is made from gold brass with a light nickel silver trim ring. In addition to the warm visual impression this provides, it also makes it more corrosion-resistant compared to conventional brass. Each individual part, down to the hand-turned supports, reflects the demands of the craft and gives the body its unique character. The miniball linkages are one special feature of the instrument. They are made from bronze and are therefore harder than conventional linkages. Combined with steel, they have excellent bearing properties, further reducing the wear. The warm and soft tone, combined with a precise sound, means that both musicians and listeners enjoy a special experience with this instrument.