The RT-48 is a mouthpiece that is based on the classic Helleberg design with a larger inner diameter. The deep funnel shaped cup produces a dark tone with a broad core. The enhanced rim shape helps to provide a quick response and clarity of tone. This is a fantastic mouthpiece for medium-large and large-bore BBb and CC tubas.
Specifications:
Cup: Inner Diameter 32.5mm/1.28in, deep pear shaped cup
Rim: Width: 8mm/0.3in, flat with sharp inner edge
Bore: 8.3mm/0.33in
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