Small Bore Trombone: Lightweight Underpart

Our lightweight models are perfect for players looking for a more nimble and brilliant sound. These are available in the same sizes as the standard weight line.

The small bore tenor trombone models include:

• 5: Our largest small bore size, this offers excellent core production and balance across all registers.
• 5.5: Similar to the 5, the 5.5 features slightly smaller rim diameter for those looking for the added support.
• 6: Provides a more focused sound and a denser core. 
• 7: Balanced yet compact.  A great all around small bore tenor mouthpiece.
• 9: Immediate response and extremely compact tone, a fantastic alto mouthpiece.
• 11: A well balanced lead piece with a V-shaped cup to give you the zip you need.

Underparts requires the respective diameter rim.

Each of these come in three different cup configurations:

• D: Our deepest cup in our stock options, providing a very free-blowing experience.  The extra depth allows for a warmer and richer tone color in the low register, without sacrificing the upper register.
• M: Our medium cup is the most popular model.  It is a middle of the road cup designed to appeal to a broad range of performance genres.
• S: Our shallow cup provides more support in the middle and upper registers, adding some extra brilliance and efficiency.

Size Information:

• 5: Throat: 0.277" (7.04 mm)
• 5.5: Throat: 0.277" (7.04 mm)
• 6: Throat: 0.266" (6.76 mm)
• 6.5: Throat: 0.277" (7.04 mm) (6.5S is Throat: 0.261" (6.63 mm))
• 7: Throat: 0.250" (6.35 mm)
• 9: Throat: 0.234" (5.94 mm)
• 11: Throat: 0.228" (5.79 mm)

This is the cup portion of our two piece mouthpiece system - match up with our separate corresponding screw rim, available in brass or acrylic materials.

All available in brushed or polished finish, in silver or gold.