Kay Siebold Mouthpieces

  „The perfect mouthpiece“ is an ongoing topic for every saxophonist. Accomplishing this goal is very different from one player to another. Overall it requires a highly reliable and dynamic action throughout the complete register of the Instrument, with a truly inspiring sound on top.

 With this Spirit of Aspiration, I produce my Mouthpieces.



All Kay Siebold metal-mouthpieces are handmade out of solid brass, with a thin-walled and detailed design and a gold-plated finish.

All parameters responsible for the sound-character of the mouthpiece are milled, shaped, filed and polished completely by hand. During this process, the mouthpiece is constantly measured and played until the response, the handling and the sound suit my high expectations for every mouthpiece.

Here are some examples for what makes Kay Siebold mouthpieces special:


All mouthpieces are contiously made with no biteplate-cutting, which allows a more versatile baffle-shaping.
The tip of the mouthpiece has a very slim design, which makes playing feel very comfortable.

with biteplate-cutting without biteplate-cutting

Slide-On Ligature


This ligature is fixed into the rails of the mouthpiece and keeps the reed firmly in place without letting it slip, even when the mouthpiece has to be re-adjusted e.g. for tuning.

The Slide-On ligature with its 4-point-plate lets the reed sit evenly on the mouthpiece-table.

Different positioning of the ligature will slightly change the overall sound, put it more to the front to get a brighter tone.


Slide-On Ligature  

Rounded Shank-Opening

The edges of the mouthpieces schank-opening are rounded and not sharp like with most mouthpieces.

This eases the process of putting on and adjusting the mouthpiece and prevents the cork from being damaged.
  rounded Shank-Opening

Small Table & Big Window

The smaller surface of the table causes the reed to vibrate more efficiently.

The molding of the table is also done by hand and is provided with a slightly concave shape from side to side.
 small table & big window (comp. w/ Link)  

Facing-Curve, Tip- & Side-Rails

facing-curve & tip opening

The profile of the facing-curve is very important for the overall response of the mouthpiece. This very sensitive area is a direct indicator for an easy use and a good response.

The right balance between perfect resistance and  immediate availability over the full register, the subtones, vibrato and flagoletts - all that takes place on the facing-curve.

The facing of all my mouthpieces is completely done by hand. During this process the profile will be measured several times on different areas until it meets my expectations of a "perfekt" facing.

   tip-rail & side rails

Rounded Inner Sidewalls

The inner sidewalls of the Kay Siebold metal mouthpieces are rounded. The sound gets more volume and depth.
rounded inner-sidewalls  


The shape of the baffle, which directly reflects the vibrations of the reed, also has a big influence to the overall character of the tone.

The closer the reed is to the baffle, the more direct, bright and focused is the tone.

Kay Siebold mouthpieces come in three different sound-concepts (see below).



The three Models

Model Heritage

The Heritage mouthpiece has a large chamber that has a voluminous and warm sound. The Long Rolled baffle provides the projection necessary for a good support.


Model Response

The response mouthpiece has a vital, round and present sound. Full and rich in the low-end with fine brilliance in the high register. With a medium high baffle the sound is very versatile and is designed for players with a wide range of stylistics.


Model Response II

The Response II mouthpiece has a brilliant powerful sound. The high high baffle supports playing in the Flagolett register. Exellent for a very projected and powerfull sound.