Home > Trumpet > 66.6 Series: .666" / 16.92mm


The GR 66.6 Series cup diameter is slightly larger than a conventional 3 diameter.

This is a very versatile series featuring the same rim and alpha angle on each model for easy switching. Slightly flatter rim with sharper bite than the GR 3 Series.

66.6M2*
Very versatile cup ideal for Bb and C trumpet.

66.6M2**
Longer L1 for added chop room. Traditional sound on Bb and C trumpet.

66.6M2***
Wonderful Bb and Eb mouthpiece featuring a huge traditional sound.
Models Cup Volume Cup Volume Cup Diameter r2 r4 Rim
66.6 Description Cubic Inches Inch mm Fraction @.032" Contour Bite Alpha Angle
66.6M2*** Medium Large 0.0837 0.666 16.92 42.62/64 0.674 Semi-Flat Medium Sharp Medium
66.6M2** Medium Large 0.0855 0.666 16.92 42.62/64 0.674 Semi-Flat Medium Sharp Medium



66.6M2 Series Trumpet Mouthpieces