Model PT 83 and PT-83+ Perantucci Best Seller

Cup Diameter : 32,0 mm diameter.   Long V-shaped funnel.
Rim : Width 7,5 mm. Fairly sharp inner  edge. Moderately round rim.
Bore : 8,6 mm.
Resistance : Comfortable with cushion effect.

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.

Perantucci tuba mouthpieces are available with the following 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 sounding.