Home > Trumpet > 66.8 Series: .668" / 16.97mm


The GR 66.8 Series cup diameter is similar to a conventional 1 1/2 diameter.


These designs offer the 1 1/2C player a familiar feel but with a more efficient blow, full of overtones and better matched to both Bb and C trumpet.

66.8 B 2.8

  • Rim is very traditional in profile.
  • Medium bite.
  • Alpha angle is medium for good support.
  • Preferred by many 1 ½ C players.
  • Works well on the more traditional trumpet designs.
  • This mouthpiece was designed for Bb trumpet to achieve a traditional sound with full harmonic spectrum of overtones.
  • Standard GR Symphonic blank and length with standard throat bore, and #3 BB

66.8 C 2.4
  • Rim is very traditional in profile.
  • Medium bite.
  • Alpha angle is medium for good support.
  • Preferred by many 1 ½ C players.
  • Works well on the more traditional trumpet designs.
  • This mouthpiece was designed for C trumpet to achieve a traditional sound with full harmonic spectrum of overtones.
  • Standard GR Symphonic blank and length, larger throat bore, and #3BB

X66.8 C*
  • Hybrid rim with a slightly flat contour.
  • Medium bite, medium width, and medium alpha angle that is very easy to play.
  • This a great mouthpiece and extremely versatile for Bb or C trumpet and similar to the GR C* series.
  • Standard GR Symphonic blank and length with standard throat bore, and #3 BB

66.8 Series Trumpet Mouthpieces