Perfect for the high school marching band, the KSP411 is a lightweight sousaphone with a .73” bore size. Engineered with a focus on ergonomics and comfort, the three-valve KSP411 comes with a wheeled case for easy transport. The 26” bell gives a solid bass sound for the rest of the brass ensemble.

• White fiberglass bell and branches reduce weight and cost and increase durability
• Removeable brass valve section has clear lacquer finish

• .730” bore
• Wheeled ABS case