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S.E. Shires Trombone Replacement Bell


Item Details

This is a group of replacement bells for S.E. Shires modular trombones.  S.E. Shires bells are made by hand in their Boston factory. They are labeled (underneath the tuning slide receiver facing inside) beginning with a number and a letter, indicating the bead (rolled end of the bell), construction, and alloy.

Bells Available

  • Bass BII 7GM - bass trombone, large taper, 9.5", gold brass, medium weight
  • Bass BII 7YLW - bass trombone, large taper, 9.5", yellow brass, lightweight
  • Tenor 7YCT - tenor trombone, 8.5", yellow brass, annealed, lightly used


The 7 bells feature a soldered bead: favors pointed articulations and centered sound.  Type 7 bells are a modified 2 piece construction, made to combine the best playing characteristics of both one piece and two piece bells.

  • Y = Yellow Brass: 70% Copper, 30% Zinc. Clear, pure sound with strong fundamental, keeps a very consistent tone color and overtone structure throughout the range of dynamics.
  • G = Gold Brass: 85% Copper, 15% Zinc. Combines many of the characteristics of yellow and red brass for a very balanced and flexible sound.
Other numbers and letters after the first two signify a variety of options and are sometimes combined.
  • LW = Light Weight: Very resonant and brilliant with quick, easy response.
  • M = Medium Weight: Slightly lighter than standard.
  • HW= Heavy Weight: Holds together very well at loud dynamics, can require more effort to play.
  • T7 = Treatment 7: Thinned in flare, for some players provides easier response than standard.
Markings specific to bass trombone bells
S.E. Shires bass trombone bells are available in two flare dimensions, indicated before the other markings. If nothing is indicated, it is a BI flare.
  • BI = compact flare: strong core and easy projection.
  • BII = wide flare: very broad sound.

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