Cup: 32,0 mm / Medium depth pear shaped cup

Rim: 8,0 mm

Bore: 8,6 mm

PERANTUCCI SOUSAPOWER 3 is a low resistance mouthpiece, open blowing and deeply resonant. This characteristic is obvious in the middle and low register. In the upper middle and upper register, the resistance remains low and may seem unconventional at first. The open-blowing characteristic continues though, well into the high register. Reduced pressure enables greater flow of air, in a range where many mouthpieces choke up. Once the functional advantages are recognized, the upper middle and high registers of most instruments are more accessible, with a fine consistency of tone quality over a greater range. A unique balance between cup shape, throat and backbore dimensions assures excellent intonation.

Cup: 32,0 mm / Medium depth rounded cup

Rim: 8,0 mm

Bore: 8,4 mm

PERANTUCCI SOUSAPOWER 4 is a low resistance mouthpiece, open blowing and deeply resonant. This characteristic is obvious in the middle and low register. In the upper middle and upper register, the resistance remains low and may seem unconventional at first. The open-blowing characteristic continues though, well into the high register. Reduced pressure enables greater flow of air, in a range where many mouthpieces choke up. Once the functional advantages are recognized, the upper middle and high registers of most instruments are more accessible, with a fine consistency of tone quality over a greater range. A unique balance between cup shape, throat and backbore dimensions assures excellent intonation.