Best Brass HR-7D mouthpiece for horn, cup diameter O 17,20mm, cup depth: mildly shallow, O 4,00mm throat, gold plated, produces powerful and tonal core sound, similar bach 11 (shallower)

Best Brass HR-5D mouthpiece for horn, cup diameter O 17,50mm, cup depth: mildly shallow, O 4,00mm throat, gold plated, produces speedy and brilliant european sound, similar alex. 8

Best Brass HR-3B mouthpiece for horn, cup diameter O 17,80mm, cup depth: mildly deep, O 4,70mm throat, gold plated, similar alex. MY15 (larger)