User Manual

22
Yamaha Mouthpieces
GP & Silver 925 Series
Brass
GP & Silver 925 Series
Our GP and Silver 925 Series have 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. The 925 Series are the first production mouthpieces in the
world to be manufactured from pure sterling silver for a rich, warm
tone core with sufficient sparkle for clarity and life.
Trumpet Mouthpieces
GP
ST
(Sterling Silver)
Model
No.
Rim
Cup
Depth
Throat
(mm)
Backbore Playing Characteristics
Inner
Diameter
(mm)
Contour Thickness
7A4 -GP
7A4-ST
16.24 Semi-flat Thick Shallow 3.65 Narrow
Relatively small inner rim diameter, but still
flexible. Perfect for piccolo or lead trumpet.
8C4-GP 16.19 Semi-flat Standard Standard 3.65
Semi-
narrow
Good for all-around playing, including solos.
Combines an extended high range with rich lows.
11B4 -GP
11B4 -ST
16.46 Semi-flat Standard
Semi-
shallow
3.65
Semi-
narrow
A somewhat shallow cup and medium rim for
extra endurance. Brilliant tone. Suitable for D,
E
b
, and piccolo trumpets.
14A4a-GP
14A4a-ST
16.68 Semi-flat Semi-thick Shallow 3.65
Semi-
narrow
Fast-response high range and powerful sound.
Ideal for piccolo or lead trumpet.
14B4-GP
14B4-ST
16.85 Semi-flat Standard
Semi-
shallow
3.65
Semi-
narrow
Relatively large rim diameter and shallow cup.
Outstanding overall balance for all musical
genres.
14C4-GP 16.88 Semi-flat Standard Standard 3.65
Semi-
narrow
Rim designed for outstanding facility
and flexibility. Popular in ensembles and
orchestras. Can produce high volume.
16C4-GP
16C4-ST
17.0 0 Semi-flat Standard Standard 3.65
Semi-
narrow
Large rim and medium cup for easy playability
over a wide range. High volume. Excellent for
symphony orchestra players.
17C4-GP 17.3 0 Semi-flat Standard Standard 3.65
Semi-
narrow
Powerful, dark sound. A popular choice with
symphony orchestra players.
Model
No.
Rim
Cup
Depth
Throat
(mm)
Backbore Playing Characteristics
Inner
Diameter
(mm)
Contour Thickness
14E-GP 16.86 Standard Standard Deep 3.98 Standard
Slightly smaller inner rim diameter than the
16E. Soft, warm tone. Subtle, precise sound
enables consistent playing in all registers.
16E-GP 17.0 6 Standard Standard Deep 3.98 Standard
Slightly thin rim with a unique form enables
high-level playing techniques.
Cornet Mouthpieces (Short Shank)