The Yamaha BCL‑5C is part of Yamaha’s Standard Series of bass clarinet mouthpieces, crafted from high-quality phenolic resin (plastic). These mouthpieces draw design inspiration from Yamaha’s professional-grade Custom Series, but feature a slightly shorter facing, making them more user-friendly—especially for students and developing players
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Series: Standard Series (BCL‑5C)
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Material: Phenolic resin (plastic)
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Design Basis: Modeled after Yamaha’s Custom Series, but with a shorter facing for easier playability
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Tip Opening: 1.80 mm
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Facing Length: 31.0 mm
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Intended Effect: Provides a fuller sound and more tonal flexibility than the 4C model
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System Compatibility: Boehm-system bass clarinet


















