Home > Trumpet > 64.7 Series: .647" / 16.43mm

The GR 64.7 Series cup diameter is somewhat similar to a conventional 13 diameter. 64.7S is a great alternative for those who "bottom out" on a 13A4a.

The rim is slightly wider than the standard GR rim, and features a semi - flat contour. It has a slightly more cushioned feel than Standard but with a bite that allows for precise articulations.

Models Backbore Cup Volume Cup Volume Cup Diameter r2 r4 Rim
Trudell 64.7 Number Description Cubic Inches Inch mm Fraction @.032" Contour Bite Alpha Angle
64.7S 1 Small 0.063 0.647 16.43 41.4/64 0.654 Semi Flat - Wide Medium Sharp High
64.7MS 1 Small 0.066 0.647 16.43 41.4/64 0.654 Semi Flat - Wide Medium Sharp High
64.7M 2 Medium Small 0.069 0.647 16.43 41.4/64 0.654 Semi Flat - Wide Medium Sharp High


64.7 Trumpet Mouthpiece
64.7 Trumpet Mouthpiece
Our Price: $230.00