CHI Brass JCS Helleberg Heavyweight Tuba Mouthpiece

Precision, Clarity, and Consistency

The CHI Brass JCS Helleberg heavyweight combines the attributes of classic Sear Helleberg, Arnold Jacobs modifications and the Floyd Cooley designed rim with more mass.  The JCS is essentially our JS Helleberg with Floyd Cooley's rim added for those desiring a more rounded rim on a large Helleberg. Designed for players who demand dependable performance in a variety of musical settings, the JCS offers excellent articulation, flexibility, clarity, projection, and tonal focus.

Its balanced characteristics make it a versatile choice for performers at every level.

Sound Characteristics

• Focused tone center

• Clean articulations

• Excellent projection

• Efficient response

• Stable intonation

• Consistent performance across registers

• Flexible dynamic range

Recommended For

Ideal Applications

• Symphony Orchestra

• Concert Band

• Wind Ensemble

• Brass band

Ideal Instruments

• CC Tuba

• BBb Tuba

Specifications

• OAL: 3.756″

• Max OD: 1.930″ 49.02 mm

• Cup ID @0.060: 1.326″ 33.68 mm

• Throat Size: 0.330”  8.38 mm

• Shank: Standard 0.530″, A 0.525″ or E 0.540”

• A $25 cleaning, polishing and restocking fee applies on any returned mouthpiece

• If Gold Plate desired please email us for current market pricing

• Gold, Special Order or marked or damaged Mouthpieces are not returnable

Why Choose CHI Brass?

Every CHI Brass mouthpiece is manufactured to exacting standards in the U.S. with a focus on consistency, response, comfort, and tonal beauty. Developed in collaboration with leading performers and educators, CHI Brass mouthpieces are trusted by musicians around the world for their precision, reliability, and exceptional musical results.

Dependable Performance

The JCS Helleberg provides the clarity, consistency, and flexibility that serious performers demand from a professional mouthpiece.