Home › Trombone › Bach 17C vs Bruno Tilz 305-D 5

Bach 17C vs Bruno Tilz 305-D 5

The Bruno Tilz 305-D 5 has a wider cup diameter, the Bruno Tilz 305-D 5 features a deeper cup, the Bruno Tilz 305-D 5 has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
    Bach 17C
    • Trombone
    Throat diameter5.85 mm / 0.2303 in
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Bruno Tilz 305-D 5
      • Trombone
      Catalog
      Throat diameter6.30 mm / 0.2480 in
      Best suited for
      📣High-volume projection — open throat for power

      Throat Diameter

      The Bruno Tilz 305-D 5 has a wider throat (6.30 mm / 0.2480 in vs 5.85 mm / 0.2303 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.

      Which is better?

      Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.

      Open in interactive tool + Add third mouthpiece Bach 17C details Bruno Tilz 305-D 5 details Bach 17C equivalents Bruno Tilz 305-D 5 equivalents

      Compare Bach 17C with others

      Compare Bruno Tilz 305-D 5 with others

      Popular Trombone comparisons

      Bach vs Bruno Tilz

      Browse by specification