Yamaha GP TR-14A4a

Yamaha GP TR-14A4a

  • Instrument: Trumpet
  • Material: Brass
  • Finish: Silver plated
  • Bore: 3,65 mm (0,144")
  • Cup depth: Flat
  • Cup Diameter in mm: 16,68 mm
  • Rim shape: medium flat
  • Rim: Medium wide

Yamaha GP TR-14A4a · Mouthpiece (brass)

GP Series Mouthpiece for Trumpets from Yamaha 14A4a

Featuring an innovative shape and extra-heavy gold-plate finish, the GP series is for advanced players who prefer a focused, concentrated tonal core. Yamaha have chosen different weights and shapes for each model to ensure an ideal balance between instrument and mouthpiece. The cup and inner bore are also gold-plated for superior projection and smooth response.

Inner diameter: 16.68
Contour: semi-flat
Cup thickness: semi-thick
Cup depth: shallow
Throat in mm: 3.65
Backbore: semi-narrow

Fast response high range and powerful sound. Ideal for piccolo or lead trumpet.

Yamaha GP
Yamaha's GP series mouthpieces appeal to the advanced musician. To ensure best comfort, the rim, bowl and bore of the GP mouthpieces are extra gold plated.

In addition, the GP mouthpieces are heavier than the standard series, giving a more direct response and a richer sound.


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Advice & Support Dept. Brass
Frank Bock
Dept. Brass
Tel.: +49 5451 909-170

Order Hotline
+49 5451 909-189
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