Stainless Steel San Francisco Model #2

#14 Bore Underpart

The Houser "San Francisco Model" is used by the horn section of the San Francisco Symphony and is based on the time-tested, bowl-shaped cup design that has been found to be most compatible with Geyer-style horns. Its design can be traced back to mouthpieces made by Carl Geyer himself and offers quick response and evenness throughout all registers. It provides a rich, complex tone in lower dynamics and plenty of brilliance and projection when played loud. This allows the player access to a wide variety of tone color possibilities without sacrificing response and flexibility.

No enduring mouthpiece can be designed in a vacuum. The collaboration of the San Francisco Symphony horn section for nearly 6 months has been instrumental in fine tuning the back-bore and bore to give the best balance of air-speed and resistance to the piece.

During the evaluation phase, the second prototype (out of several) was by far the favorite of the horn section, hence the the designation as "Model 2".

This mouthpiece is a 2 piece model offered initially in silver plated brass. It has a #14 bore and proprietary multi-tapered back bore.

Shank Size: This a small diameter shank- .293 in. If larger diameter shanks have performed better in your horn you should check out our two piece screw shank models. This option gives you the ability to select the depth the mouthpiece fits into the receiver. Pitch control, resistance, and slotting can be optimized for this cup design.

Cup Threading: Giardinelli 3/4 x 36 threads are standard. Optionally Lawson threads may be substituted for no additional charge. There is a $10 charge for PHC, as a larger blank is used in production and the cup interface is modified slightly for the larger junction found on most PHC models.

Rim Options: Compatible with any of our existing Bloom, Standley, Landsman rims or any 3/4 x 36 Giardinelli style screw rim having a junction diameter of .655-.660 in.

Trial and Return Policy: The trial period is 7 days after you receive the mouthpiece. The mouthpiece may be returned for a $7.00 restocking fee provided it is not damaged in any way. Shipping on the original purchase is non-refundable.


Fr. Horn Rim Tech Sheet