OIRAM IV

A great choice for those seeking the balance, security and slotting of the OIRAM series, the OIRAM IV offers a bell with a slightly slower taper and more compact sound when compared to the OIRAM II.

• ML bore 11.7 mm (0.461″)
• Standard weight valve casing
• One-piece hand-hammered bell
• Bell material: yellow brass
• Bell diameter: 135 mm (5.319″)