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King KSP411S

Perfect for the high school marching band, the KSP411 is a lightweight sousaphone with a .730” 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.


  • .730” bore
  • 26” bell
  • .730” bore
  • Notched main tuning slide
  • ABS case
  • Available in lacquer (KSP411) or silver-plated (KSP411S) finishes
  • King KTU mouthpiece
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