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Unity B4

Unity Mouthpieces: the latest generation of Monette mouthpieces


Size Comparison: Monette B4 S3 and original B4, conventional 1-1/2C


New in 2024!

The Unity B4 is the same size and has the same cup as the extremely popular Unity B4-7, but it incorporates the same rim contour as the original Monette B4, and the B4 S3 that came later. This 'original B4 rim' has more 'bite' to the inside edge than most Monette mouthpieces. It was first made in the 1980s when Bud Herseth had us duplicate the rim contour of one of his favorite conventional mouthpieces in a 1C size, but the B4 has always been more 'mainstream' in diameter - comparable to a conventional 1-1/2C.


This new Unity B4 combines the original B4 rim with a modern Unity cup, and all of the other advantages that our Unity designs provide. This is a great choice for players who prefer a flatter rim contour with a more pronounced 'bite' on the inside edge.


*If you have never used this B4 rim before (e.g. B4 S3 or original B4), we would first recommend the Unity B4-7 with its newer '-7' rim design. But players who want the familiarity of the original B4 rim, or simply prefer a good amount of 'bite' on the rim, will love the Unity B4.



The Unity B4 is made in the standard-weight Unity body.


Plating & Finish:

Unity mouthpieces can be plated in 24k brushed gold or bright silver.

Unity B4

PriceFrom $385.00
  • Monette mouthpieces are made-to-order and usually will not be available as ready-made stock. The standard estimated wait time to have a trumpet mouthpiece made is approximately 6-8 weeks. Unity mouthpieces for Bb and C trumpet are often available within a shorter wait time. Uncommon sizes can involve a longer wait time. The exact wait time is unpredictable, as it is affected by many variables. We cannot guarantee an exact completion date or shipping date in advance. Thank you very much for your patience while you are waiting for your mouthpiece to be made for you.

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