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Model RA Mouthpiece

The RA features a special combination of chamber, bore, facing, and exterior dimensions that result in a mouthpiece that produces effortless focus and precise definition of the tone, allowing great freedom of embouchure and voicing without loss of tonal stability.  This special design includes a double-concave baffle and a narrow chamber. The bore combined with the chamber width and baffle contour yields tuning of A=440-441 Hz on most professional clarinets using standard length barrels.


The outstanding performance features of the RA shell are its dark, compact tone, efficient, agile, and secure response, and its excellent focusing/stability characteristics. The combination of stability in pitch, color, and shape in dynamic changes, roundness of tone in the upper clarion, and efficient, agile response make the RA and excellent choice for both orchestra and chamber music.



The Eroica has everything an orchestral clarinetist or a clarinetist who desires excellent tonal presence at higher dynamic levels needs. The chamber of the Erioca combine with other unique design features to make it easy to maintain fine tonal color and shape even when playing at the fullest dynamic levels. The chamber also helps maintain pitch stability in both extremely soft and loud playing.


The facing of the Eroica is specially designed to take lots of air without causing the tone to sound strident or forced. Next, the Eroica is very efficient and agile, playing a "tight" scale that facilitates ease in legato playing and rapid response in highly technical passages that cover the full range of the clarinet. Finally, the fact that the Eroica holds the sound so well enables the clarinetist to maintain a well-centered tone even when the embouchure is relatively relaxed. This feature gives the clarinetist greater endurance than mouthpieces which perhaps color well but do not hold the sound center as well or as efficiently.


Model RA Mouthpieces

The Model RA mouthpiece has a double-concave baffle and a narrower chamber width. This chamber creates virtually effortless focus and precise definition of the tone, allowing great freedom of embouchure and voicing without loss of tonal quality.  The bore, also hand reamed, combines with the chamber interior to produce tuning that is somewhat higher than the model RZ, but still low pitched.  The outstanding features of the RA are its dark, compact tone, phenomenally efficient and secure response and its excellent focusing qualities. All these combine to make it the preferred model for the orchestra or band clarinetist who must produce large amounts of tonal volume without loss of center or quality in the tone.



Facing Styles


General Facing Characteristics

Ridenour mouthpiece facings share certain common features. They are characterized by a perfect symmetry and are voiced by means of a seamless blending of the mouthpiece curve that creates the ideal relationship between response and the "cushioned feel" highly prized by serious clarinetists. Ridenour facings are super reed friendly and most players find many more reeds play well for them and that reed adjustment is simplified with Ridenour mouthpieces.


MT-36 Facing:  The MT-36 facing has a medium close tip opening with a long curve and works best for most players with higher strength, well-balanced reeds.  The MT-36 facing is our most popular facing and the one most suitable for the widest range of playing situations.


T-40 Facing: Characterized by a very close tip opening with long curve, the T-40 facing requires a very well-balanced reed that has lots of wood in it.  The T-40 style facing has an excellent combination of resistance and responsiveness, enables the clarinetist to play with great sensitivity and control in the upper register and produces a very deep, covered, yet clear tone, requiring very little embouchure pressure to focus and control.


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Texas residents please add 8.25% state sales tax

Pro Bb Soprano Mouthpieces

  • If you have any questions, comments or concerns about the items you're ordering, please reach out to us by email ( or by phone at 1(888)258-7845. If you're outside of the U.S., please call (469)394-3245.

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