Bach 1½C vs Denis Wick RW4

The Bach 1½C has a wider cup diameter, the Denis Wick RW4 features a deeper cup, the Denis Wick RW4 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 1½C
    • Cornet
    Throat diameter3.66 mm / 0.1441 in
    vs
    Mouthpiece B
      Denis Wick RW4
      • Cornet
      Throat diameter4.58 mm / 0.1803 in
      Best suited for
      📣High-volume projection — open throat for power

      Throat Diameter

      The Denis Wick RW4 has a wider throat (4.58 mm / 0.1803 in vs 3.66 mm / 0.1441 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 1½C details Denis Wick RW4 details Bach 1½C equivalents Denis Wick RW4 equivalents