Features

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.

The KSP411F variant is made with fiberglass branch and bell sections, reducing the weight and increasing the durability of the instrument. Perfect for schools on a budget or groups with younger students, the KSP411F shares the same valve section, mouthpipe, and tuning bits with the all-brass KSP411.