Yamaha YBB632S - BBb Tuba
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These new Yamaha BBb basses are designed in co-operation with Simon Gresswell and David King to meet the needs of all brass bands. The design incorporates a large 500mm diameter bell that keeps the sound focused and always clear. They deliver a rich tone and abundant volume that provides the ensemble with a solid and stable foundation.
At 500mm, this is the largest bell among Yamaha BBb basses. Its size greatly improves dynamic range while delivering a stable sound that envelops the entire ensemble.
The bore size offers freer blowing with a moderate amount of resistance.
An ergonomically repositioned fourth valve offers improved playability and makes fast passages easier to play.
After a thorough evaluation of valve positioning, a new design promotes a more comfortable playing posture.
The semi-circular shaped hand rest makes the instrument easier to hold and reduces fatigue when holding the instrument for long periods of time.
A new leadpipe taper offers improved resistance. Evaluating the angle of the mouthpiece led to a design that offers a more natural playing position.
A larger brace plate on the bell section delivers a moderate amount of resistance.
| Body | Color | Silver-plated |
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| Valve | Number of Valves | 3 top action +1 side action |
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| Bell | Bell Size | 500mm(19-1/2") |
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| Body | Yellow brass | |
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| Key | B♭/F (compensating system) | |
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| Included Accessories | Case | BBC-632 |
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| Mouthpiece | 66D4 |