The Kaiser series produces a powerful punch.
The Cerveny CBB 693-4PRX Kaiser 4 Valve BBb Tuba is a very large 4/4 size instruments and puts out an equally large amount of sound. It features a .835-inch bore, nickel-silver leadpipe, and 19.7-inch bell with nickel-silver bell ring which adds some body to the tone. In addition, anti-corrosive nickel-silver is used for the valve casings and slides.
The Cerveny tubas have always been known for their beautiful sound and excellent rotary valves. These fine instruments from middle Europe are easy to play and lightweight compared to other brands of tubas. Though well designed and sturdy, a hard case is recommended to keep the horn playing well for many years.