King Professional Model 1121SP Marching Mellophone

King 1121SP

Recent modifications to this instrument have many players and educators appreciating the tonal center and improved intonation of this mellophone. Great projection for the alto voice.

The King 1121SP mellophone is a highly responsive instrument that provides a powerful solo alto voice. Equally proficient in section work, it produces a full, rich sound that blends extremely well. The leadpipe is angled to aid French horn players achieve a comfortable playing position while still maintaining proper bell elevation. 1st slide thumb saddle and 3rd slide finger ring allow for easy intonation adjustments. Nickel plated pistons provide smooth, quick action and unmatched durability. The heavy-duty marching case is designed to be stackable to minimize space requirements. Silver-plate finish.


  • Key of F
  • .468" (11.89mm) bore
  • 10½" (266.70mm) Yellow Brass Bell
  • Dynamically Angled Mouthpipe
  • Nickel Plated Pistons
  • Soldered On 1st Slide Saddle And 3rd Slide Finger Ring
  • 3rd Slide Stop Screw
  • Silver Plate Finish
  • King 6 Mouthpiece
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