YAMAHA Mouthpiece for Standard Series HR-30B Horn, (Yamaha HR30B)

High-precision mouthpieces made using the latest computer-controlled processing machines. Smooth attack and easy control. We offer a diverse lineup to suit everyone's style. HR-30B: This model has a larger rim diameter than the 29B, and is a representative V-cup model. It provides smooth airflow and is particularly suitable for instruments with narrow bells. Rim inner diameter (mm): 17.27 Throat diameter (mm): 3.90 High-precision mouthpieces made with the latest computer-controlled processing machines. Smooth attack and easy control. We offer a diverse lineup to suit each individual's style. HR-30B: This model has a larger rim inner diameter than the 29B, and is a representative V-cup model. It provides smooth breath flow and is especially suitable for instruments with narrow bells. Rim inner diameter (mm): 17.27, throat diameter (mm): 3.90