The demands of modern trumpets on brass and mouthpieces, as well as specially developed calculation methods and resulting simulation, led to the production of further, powerful and more specific backbores, which represent a significant enrichment of our range and are recommended of consideration:
WS: Similar to W1 backbore, with a throat of 4.0 mm, Megasound. Can be used on standard cups of 3,800mm throat or on special made cups with 4,000mm throat
(contact me for ordering 4.0mm cups).
24: Large orchestral stem with bore 24 = 3,861 mm (contact me for ordering 3,861mm cups).
P75: A standard P backbore with 0.75mm longer soul**. The creates a little more resistance in the backbore and creates a more focused sound. Very helpful for large bore bell trumpets!
AL8: Further development of the L-bore, increased volume leads to very fine sound palet.
66: Surpasses all expectations regarding tone and endurance.
A: Digital copy of an original Bach 10 backbore.
A0: The A backbore, but now with the shorter Breslmair seele** than standard Bach backbores.
A-: The A backbore in the original Bach length (little bit shorter overall length).
A0-: The A0 backbore in the original Bach length (little bit shorter overall length), but with the Breslmair seele**
** Seele or soul of a mouthpiece, is the cylindrical space in between the throat and the actual backbore. When enlarging the soul, the mouthpiece gets more resistance because of the air that travels slower towards the backbore. When shortening the soul, the resistance gets less and the sound more round.