VINCENT BACH Symphonic 1½C Throat #25 Backbore #24

This is a trumpet mouthpiece from the Bach Symphonic Series (S651). This is a special model developed for orchestral players, based on the same cup shape as the standard 351 series (1½C), but with an enlarged throat and backbore.

* Rim outer diameter: Approx. 27.0 mm (equivalent to standard Bach)
* Rim inner diameter: 17.00 mm (= Bach 1½C)
* Throat: #25 (3.81 mm) *Thicker than standard #27
* Backbore: #24 (Large, dark, symphonic) Equivalent to Warburton #10-11
* Cup depth: Medium
* Finish: Silver-plated, CNC manufactured

List price: ¥15,730

Compared to the standard 1½C, this mouthpiece has a thicker throat (#27 → #25) and an open #24 backbore, resulting in a rich, dark tone and free blowing feel. It is designed primarily for use in symphonic orchestras.

Condition: There are minor scratches, but it is in overall clean condition.

*This information has been added to what was researched by AI. Please understand that not all information has been verified for accuracy.