CHI Brass IR 1 Tuba Mouthpiece

CHI Brass IR 1 Tuba Mouthpiece

The CHI Brass IR 1 model was designed to find a perfect EEb tuba mouthpiece. This was accomplished by blending elements of the CHI Jacobs 2 mouthpiece with two of our favorite mouthpieces for EEb made by other companies.

• The IR 1 features a very comfortable rim based on the Jacobs 2, a medium depth cup, and a slightly smaller throat combined with a gradual flaring back bore, allowing for a big sound with control.
• This mouthpiece works well on Piston, Rotary, Compensated, and non-compensated tubas.
• It also performs effectively on Contrabass when a more focused, controlled sound is desired.

Measurements of the IR Model:

• Overall Length: 3.8″ (96.52mm)
• Max OD: 1.87″ (47.4498mm)
• ID at 0.060″ into the cup: 1.312″ (33.32mm)
• Throat: 0.317″ (8.0518mm)
• Shank: Standard 0.530″ (E = 0.540″ or A = 0.525″)