The YOB-831 offers a rich, warm tone and precise intonation, making it suitable for both practice and performance. Its ergonomic key design ensures comfortable playability. The bore shape, developed through a combination of expert craftsmanship and advanced computer-aided design, contributes to an exceptionally balanced and colorful tone.
Specifications
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System: Conservatoire (semi-automatic octave system)
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Bore Style: European
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Body Material: Grenadilla wood
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Key Material: Silver-plated nickel silver
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Pads: Cork and leather
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Toneholes: Undercut with innovative uppercuts
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Auxiliary Keys: 3rd octave key, Left-hand F key, Adjustable Fork F resonance key, B resonance key, Philadelphia D key
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Trill Keys: Low B-C#, low C-Db, C#-D#, D#-E, F#-G#, G#-A, Ab-Bb, A#-B, B-C#, left C-D, right C-D


















