... focus of attention


is without doubt the cup of a mouthpiece, which seems to be the solution to all problems. It is the basis of all harmonious and all shrill sounds, it forms the sound, shapes the column of air and gives the lips too little or too much space. And it can be too deep or just too shallow. The cup does fit to pump valves, but not to rotary valves.

If I, as a producer, was asked how I would describe the ideal cup, my answer would then be:

It has to be the one that is perfectly adapted to the respective musician, his/her music and his/her instrument.

Although a lot of research work on brass instruments and mouthpieces has been done, there are no results yet which help the producers with concrete producing processes.


Gifted instrument-makers designed empirically mouthpieces working together with brass musicians who tested those mouthpieces that had been adapted to their demands referring to sound.

Countless models were designed and immediately dropped. Many producers have created an incredible number of different models. Who should be able to know about the advantages and disadvantages of the various products and make recommendations?

My standard cups are the models G1 to G4. They have been handed down to me by my father who concentrated on producing top-quality mouthpieces. To close probable gaps in the sortiment and to satisfy the curious and interested musician some Cup models were designed. Sometimes it is very important to have the silver bullet in the box helping to annihilate all the doubts in the mind of somebodys head .....


Spalte 1 Spalte 2

Compare your Cup
Adobe Acrobat Dokument 34.8 KB
Drill bit conversion table
Drill bit conversion table.pdf
Adobe Acrobat Dokument 281.1 KB


click for downloading the PDF-file

click onto the drawing to enlarge

To use the PDF-files in the intended manner you have to use
Adobe Acrobat Reader DC.
You can see all the layers and by switching the intended models ON/OFF
you can compare the desired rims.

Breslmair goes Jazz

Since 2017 we made extensive experiments and tests regarding a suitable cup design for piston trumpets.
In addition we want to spoil our clients with a distinctive labeling system which makes it easy to find out the appropriate size.
The column "Volume/Size" is reflecting the ranking of the cup models. 



Philharmonic Line

In 1968 the first trumpet mouthpiece was produced in the experimental workshop of the "Austrian Atomic Research Center".
Karl Breslmair sen. was the head of a team of technical experts and fulfilled an order from the Vienna Philharmonic Orchestra.
The very first model was goldplated, therefore the letter G.
After a few prototypes one model was the most preferred and the numeric character 1 was added.
G1 is still one of the most used models in orchestral music.



Symphonic Line

Musicians at all times are looking for achieving improvement in their work.
Almost every musical work requires a corresponding mouthpiece.
In the G2 line you will find the ideal part for creating a wonderful sound.



Musical Line

Contemporary music requires a high degree of flexibility in the range and the mouthpiece should be suitable for both rotary valve and perinet valve trumpets.
The G3 series meets all the requirements of an allround musician with bravura.



Individual Line

Whichever valve category you prefer, whichever style you feel you belong to - you need a mouthpiece that gives you support in your individuality.
Trust in a G4 model.



Back To The Roots

In 1968 Karl Breslmair sen. laid the foundation stone for our mouthpiece manufacture. In the course of our 50th  company anniversary, the most original cup shapes were digitised and checked for their consistency with the requirements of the present time.
Series 50 leaves nothing to be desired.