The Yamaha YBB 631S
Made in the British Brass Band Tradition
An excellent 4/4 instrument with wonderful playing characteristics. The compensating valve system allows for extremely steady intonation no matter where you are on the horn. The attention to detail is up to the usual very high standards of the Yamaha Corporation. This is a truly remarkable instrument that can be used in almost any environment. |
Standard Features
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| Size | 4/4 |
| Bore | .689" - .768" graduated bore |
| Key | BBb |
| Valves | 3 top action and 1 side action monel pistons, fully compensating |
| Bell | 17.5" upright yellow brass (silver plated) bell |
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