Yamaha BCL-4C Bass Clarinet Mouthpiece

Series: Yamaha Standard Series

Instrument: B♭ Bass Clarinet (BCL = Bass Clarinet)

Material: High-quality phenol resin (plastic), based on Yamaha’s Custom Series ebonite mouthpieces

Tip Opening: 1.70 mm (slightly more open than the BCL-3C)

Facing Length: 31.0 mm (consistent across Yamaha bass clarinet mouthpieces)

Tone Character: Balanced tone across all registers; more volume and tonal richness than the 3C while still maintaining control

Skill Level: Excellent for both students and advancing players; Yamaha calls the 4C the “all-rounder” in the bass clarinet series