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.

• Traditional brass bell and branches gives full, rich sound
• Clear lacquer finish

• 26” bell
• .730” bore
• Notched main tuning slide
• ABS case
• King KTU mouthpiece