CHI Brass Geib 1 Tuba Mouthpiece

Warmth, Color, and Musical Flexibility

The CHI Brass Geib 1 is directly connected to Fred Geib's own personal mouthpiece. Its rim, cup, and throat are faithfully reproduced from Geib's original design.

The historical mouthpiece featured an unusually large shank with interchangeable backbores, which have since been lost. To address this, CHI Brass developed a modern backbore that works seamlessly with Geib's original rim, cup, and throat dimensions.

The result? A mouthpiece that preserves the distinctive Geib concept while ensuring it is practical for use with modern instruments.

Performance Characteristics

The Geib 1 delivers:

• A rich, colorful sound with exceptional flexibility.
• Tonal complexity that enhances musical expression.
• A cup design that provides warmth without sacrificing clarity or projection.

Sound Characteristics

Key sound features include:

• Warm, colorful tone
• Rich overtone structure
• Smooth articulation
• Flexible response
• Singing upper register
• Responsive low register
• Excellent dynamic control

Recommended For

Ideal Applications:

• Symphony Orchestra
• Chamber Music
• Brass Band
• Wind Ensemble

Ideal Instruments:

• CC Tuba
• BBb Tuba

Specifications

• Overall Length: 3.816"
• Maximum OD: 1.869" / 47.47 mm
• Cup ID at 0.060": 1.331" / 33.81 mm
• Throat: 0.323" / 8.22 mm
• Standard Shank: 0.530"
• A Shank: 0.525"
• Euro Shank: 0.540"