1100 Series JSP1110 Quantum Marching Sousaphone

JSP1110 (Previous 590L)
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Overview Specs


The Jupiter JSP1110 Quantum Marching University Quad Valve BBb Sousaphone combines the benefits of a large bore with a concert tuba-style four valve cluster for a larger sound with less resistance and better intonation. Comes with molded ABS case with wheels.


  • Lacquered Brass Body is produced using state of the art technology to ensure an instrument of the most accurate scale and playability
  • Stainless Steel Pistons have remarkably smooth, fast action for improved agility and playability
  • A Removable Valve Section perfect for allowing full access to areas that would be normally unreachable to a repair technician


  • Key of BBb
  • Lacquered Brass Body
  • 26" Bell
  • 4 Stainless Steel Pistons
  • .736" Concert Bore
  • Removable Brass Front Action Valve Section
  • Lacquered BrassValve Section
  • Hard-Shell Case with Wheels