GP Series has been created especially for professionals who require superior quality from their mouthpiece. The GP Series features an innovative shape and extra-heavy gold-plate finish for players who prefer a focused, concentrated tonal core.
GP Series
Model No.
Rim Inner Diameter (mm)
Throat (mm)
Characteristics
HR-30-GP
17.08
4.40
Smaller inner rim diameter than the 31. All-around type. Shallow “U” cup facilitates high notes, while a deep “V” makes low notes easy.
HR-31-GP
17.28
4.40
Medium rim configuration provides flexibility for difficult passages. Relatively large throat delivers a heavy, somewhat dark tone with extra volume.
HR-32-GP
17.48
4.40
Larger inner rim diameter than the 31. Authoritative low notes. Large cup volume for a rich, mellow tone.
