Yamaha YAC-TR7A4 Trumpet Mouthpiece

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Yamaha YAC-TR7A4 Trumpet Mouthpiece

Produced using the most advanced computer design and manufacturing technology Standard Series mouthpieces feature unmatched precision, smooth attack, secure control, and easy playability. They have the ideal weight for all-around usage and are available in over 100 configurations. There’s a Yamaha mouthpiece to suit every player.



  • Rim Inner Diameter: 16.24mm
  • Throat: 3.65mm


Model No.Rim Inner Diameter (mm)Throat
TR5A4 15.90 3.65 Extremely small inner rim diameter. Flat and wide. Small cup volume. Ideal for lead trumpet.
TR6A4a 15.90 3.65 Very shallow cup for easy high notes. Good for big-band type lead trumpet.
TR7A4 16.24 3.65 Relatively small inner rim diameter, but still flexible. Perfect for piccolo or lead trumpet.
TR7B4 16.08 3.72 Relatively large throat diameter with a sharp shoulder. Bright sound with easy high notes.
TR8C4 16.19 3.65 Good for all-around playing, including solos. Combines an extended high range with rich lows.
TR9C4 16.28 3.65 Somewhere between the 8C4 and 11C4, affording easy playability over a wide range. Well-defined rim bite for easy blowing and extended endurance.
TR11A4 16.46 3.65 Medium rim diameter with a shallow cup for easy high notes. Ideal for piccolo trumpet and jazz idioms.
TR11A5 16.38 3.65 Wide rim shallow cup with a slightly large back bore delivers a rich upper range with ease. Well-suited for piccolo trumpet.
TR11B4 16.46 3.65 A somewhat shallow cup and medium rim for extra endurance. Brilliant tone. Suitable for D, Eb, and piccolo trumpets.
TR11 16.32 3.72 Relatively large throat with a sharp shoulder. Easy to play over the entire range, with a fairly bright sound. Good for beginners.
TR11C4 16.46 3.65 Clean bite and well-balanced rim for all-around playing. Standard model for beginners and advanced players.
TR13A4a 16.20 3.65 Relatively flat rim with a shallow cup for fast response. Ideal for piccolo and lead trumpet.
TR13B4 16.63 3.65 Superb clarity for large ensembles and orchestras. Well-matched to C trumpets. Powerful sound.
TR13C4 16.50 3.65 Medium rim diameter and cup volume for allaround playing. Good for ensembles and orchestras. Fairly dark sound.
TR13D4 16.68 3.65 Fairly deep cup with rich, mellow tone. A dark sound that is ideal for orchestra players.
TR14A4a 16.68 3.65 Fast-response high range and powerful sound. Ideal for piccolo or lead trumpet.
TR14B4 16.85 3.65 Relatively large rim diameter and shallow cup. Outstanding overall balance for all musical genres.
TR14C4 16.88 3.65 Rim designed for outstanding facility and flexibility. Popular in ensembles and orchestras. Can produce high volume.
TR14D4 16.80 3.65 A fairly deep cup with a medium rim. Rich, somewhat dark tone. Well suited to orchestral playing.
TR14E4 16.84 3.88 The 14B4 rim with a unique cup for a soft tone. For rotary trumpets. Large backbore and throat.
TR15B4 16.96 3.65 Fairly large rim diameter with a shallower cup than the 15C4. Outstanding flexibility. Suits Bb, C, D, and Eb trumpets.
TR15C4 16.98 3.65 Clean rim bite with a standard U-shaped cup. Bright, powerful tone. For advanced players.
TR15E4 16.92 3.88 Rim designed for outstanding facility and flexibility. For rotary trumpets. Between the 14E4 and 16E4 in size.
TR16C4 17.00 3.65 Large rim and medium cup for easy playability over a wide range. High volume. Excellent for symphony orchestra players.
TR16D 17.14 3.65 A deeper cup than the 16C4. Soft tone. Mellow-but-solid sound that is ideal for orchestras.
TR16E4 17.14 3.88 The 16C4 rim with a unique deep cup. Heavy tone. For rotary trumpets. Maximum inner rim diameter.
TR17B4 17.30 3.65 A good combination of large rim and relatively shallow cup. Powerful sound. A good choice for orchestra first-chair players.
TR17C4 17.30 3.65 Deeper cup than the 17B4. Powerful, dark sound. A popular choice with symphony orchestra players.
TR17D4 17.30 3.65 An even deeper cup than the 17C4 for an exceptionally dark, heavy tone. Good for symphony orchestra players who prefer a mellow sound.
TR18C4 17.42 3.65 High volume with an exceptionally large inner rim diameter and deep cup. For advanced orchestra players.


Comparison Chart

 Rim Inner Diameter
?ùÇ SmallLarge ?û?
    EM1 EM2     SHEW-LEAD VIZZUTTI        
5A4 6A4a 7A4     11A4/11A5 13A4a 14A4a        
    7B4     11B4 13B4 14B4 15B4   17B4  
              SHEW-JAZZ     GOULD  
          11     DAMROW AUBIER    
      8C4 9C4 11C4 13C4 14C4 15C4 16C4 17C4 18C4
            13D4 14D4   16D