Bass Trombone Mouthpieces

The Difference Between Mediocrity & Mastery

A brass instrument mouthpiece is much more than an add-on or accessory. It is a vital part of your instrument. As interface between artist and instrument, it can mean the difference between mediocrity and mastery.

Standard Series

Produced using the most advanced computer design and manufacturing technology, our 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.

GP Series

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.

Signature Series

Though it’s a fact little known outside professional circles, Yamaha has been producing special custom-made mouthpieces for hundreds of the world’s top players at our R&D Ateliers for many many years. These artists were not satisfied with any commercial models available. They came to us because they had confidence that if anyone had the skill needed to create their own ‘dream’ mouthpiece, it was Yamaha. The players knew from the experience gained in their long careers exactly the kind of sound and response they wanted, and our technicians knew from their long experience in crafting instruments how to deliver it.More and more colleagues and students of these top players began to ask us for copies of the mouthpieces, so we decided to offer a select lineup of them in a new Signature Series. Now others can share in the results of this great cooperative effort between artist and artisan.

Standard / GP Series

Model Number System

Standard Series

Model No. Rim Inner Diameter (mm) Throat
(mm)
Characteristics
BL-58L 26.84 7.25 Medium cup and rim for easy playability through the low and middle registers. Crisp attack with outstanding flexibility.
BL-59L 27.22 7.25 Relatively thin rim. Rich sound even on pedal tones. Voluminous cup for solid lows and plenty of power.
BL-60BL 27.83 6.92 A German-style combination of fairly thick rim with relatively shallow cup. Excellent flexibility. Easy playability and clear tone in the middle and low registers.
BL-60L 28.25 8.10 Very deep cup with a large throat and backbore. Powerful, deep, low tone. For advanced players.
BL-61D4L 28.72 8.00 The largest rim inner diameter in the Yamaha trombone mouthpiece lineup, giving it great response and the ability to produce excellent tone at high volumes.
  • *The last “L”: Large Shank

GP Series

Model No. Rim Inner Diameter (mm) Throat
(mm)
Characteristics
BL-59L-GP 27.22 7.25 Relatively thin rim. Rich sound even on pedal tones. Voluminous cup for solid lows and plenty of power.
  • * “L”: Large Shank

Signature Series

DOUGLAS YEO Model: BL-YEO-GP

The Yeo mouthpiece features a large symphonic size cup for a big rich sound. It is characterized by a full, centered tone with a focused core and a brilliant, well-defined overtone series.

  • Rim Inner Diameter: 28.72㎜
  • Rim Contour: Semi-flat
  • Rim Thickness: Semi-thin
  • Cup Depth: Semi-deep
  • Throat: 8.00㎜
  • Backbore: Semi-wide

DOUGLAS YEO Model: BL-YEO-ST

The Yeo mouthpiece features a large symphonic size cup for a big rich sound. It is characterized by a full, centered tone with a focused core and a brilliant, well-defined overtone series.

  • Rim Inner Diameter: 28.72㎜
  • Rim Contour: Semi-flat
  • Rim Thickness: Semi-thin
  • Cup Depth: Semi-deep
  • Throat: 8.00㎜
  • Backbore: Semi-wide

* Specifications are subject to change without notice. The colors and finishes shown may vary from those on the actual products.

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