Description
| Shop | Model Number |
Inner Diameter mm | Inner Diameter inches |
Outer Diameter mm |
Outer Diameter inches |
Rim Width mm |
Rim Width inches |
Rim Shape |
|---|
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|---|---|---|---|---|---|---|---|---|
| Shop | 1.5 | 17.75 | .698″ | 27.84 | 1.096″ | 5.05 | .199′ | ![]() |
| Shop | 1 | 17.50 | .688″ | 27.69 | 1.090″ | 4.95 | .195″ | ![]() |
| Shop | 1.25 | 17.20 | .674″ | 27.71 | 1.087″ | 5.05 | .199′ | ![]() |
| Shop | 2 | 17.00 | .669″ | 27.43 | 1.080″ | 5.00 | .197″ | ![]() |
| Shop | 3 | 16.50 | .649″ | 27.23 | 1.072″ | 5.00 | .197″ | ![]() |
| Shop | 4 | 16.25 | .639″ | 27.84 | 1.096″ | 5.092 | .233″ | ![]() |
| Shop | 5 | 16.00 | .629″ | 26.82 | 1.056″ | 4.88 | .192″ | ![]() |
| Shop | 7 | 15.75 | .620″ | 26.82 | 1.056″ | 4.45 | .175″ | ![]() |

Cup depth is measured from the top of the rim to the next largest drill bit size.
The Vacchiano standard cup is a unique blend of both “C” shape and “V” shaped elements. Going from size to size does not necessarily mean that there will be more depth to the cup in terms of adding volume in a downwards direction. Rather, as in the difference between the “E” and the “D” cup, only the throat section is opened up, essentially “V-ing” out the bottom of the cup in more of a sideways shape. From the “D” cup to the “C” cup, both depth and a greater “V” profile in the throat is added. Whereas, from the “C” to the “B” cup, the throat only is opened increasing the overall “V” shaped profile.
Cup Shapes
All Vacchiano trumpet models are available in two different cup shapes, Standard and PUMPED.
Standard Cup
It is the Cup Shape more than any other single aspect that represents the underlying concept embodying Mr. Vacchiano’s original vision for the design of his entire line of mouthpieces. The standard cup is what he referred to as a modified “V” shaped cup. This cup shape is in sharp contrast to the more popular “C” shaped cups that dominate most other mouthpiece lines including the ubiquitous Bach mouthpieces. Mr. Vacchiano felt that the modified “V” shape offered three major benefits: greater efficiency, a distinct “clarion” quality and improved pitch center.
Pumped Cup

Pumped Cup
The alternative PUMPED design is a combination of the classical “V” and “C” archetypes. Mr. Vacchiano recommended this variant in two possible scenarios. One was to allow more room for the lips to vibrate inside the cup. This worked especially well for the more fleshy-lipped player. The second application was to add more depth to the overall tone quality. Since the contour of the PUMPED cup increases volume by going outwards instead of down, this mouthpiece sidesteps the “tubbiness’ and slow response that is so often associated with deep cups while producing a darker, more resonant and “creamier” tone quality. The PUMPED cup offers a wonderful contrast to the standard cup and broadens the player’s artistic palette.
The Bore

The Bore is the smallest internal point in a mouthpiece. It has a dramatic and immediate impact on regulating the speed of the air.
| # Bore Size | Bore Size in Inches |
Bore Size in Millimeters |
|---|---|---|
| #28 (smallest) | .140″ | 3.56mm |
| #27 (standard) | .144″ | 3.65mm |
| #26 | .147″ | 3.73mm |
| #25 | .149″ | 3.78mm |
| * Other sizes available by special order only |
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Backbores 
The Back Bore is the internal profile of the shank area of the mouthpiece. It begins just behind the straight section of the bore. A tighter bore leaves a longer back bore, a larger bore leaves a longer straight section in the bore area and can spill over into the back bore area, especially if the back bore is small and tight. The size and profile of the back bore affects the velocity of the air and hence the sound produced. All Vacchiano models are available in the sizes shown below.

