Perantucci - Model PT-83 - BBb/CC Tuba Mouthpiece (Silver)
Model PT 83 is for players who prefer a medium width cup and a distinct but dark velvety sound in all registers. The sharp inner rim provides quick response. It works particularly well on medium-bore instruments and is available in both regular and heavy shell PT-83+ versions.
Cup Diameter (mm): 32 (Long V-shaped funnel.) Rim (mm): 7.5 (Fairly sharp inner edge. Moderately round rim.) Bore (mm): 8.6 Resistance: Comfortable with cushion effect.
Note on shanks
No indication: Large shank, for modern instruments with large receivers: (ø = 15.2 mm)
"S" models: For intruments with small receivers: (ø = 14.8 mm)
Standard large European shank is recommended for most mouthpieces.
The Perantucci S shank is recommended for instruments that have smaller receivers or those which have high resistance
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