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Chicago (deep) French Horn Mouthpiece cup CHD8

The Chicago line, by Osmun, is designed after the original Farkas model, a quintessential American mouthpiece. The Chicago Deep line is essentially a copy of the Chicago line, but with a deeper cup. The Chicago Deep line of cups produce a darker timbre than the standard Chicago line but maintain a very even response across the registers. The deep cup shape with fairly straight sides produces an even dark sound which is rich in overtones.

The Chicago (deep) line specifications:

  •  CHD8 has a #8 bore 5.055mm
  • .650" (16.5mm) diameter at the joint where the cup and rim meet
  • inch threads are .750-36 threads, compatible with almost all American-made screw rim mouthpieces
  • metric cups are 17.5mm at the joint where the cup and rim meet (special order 1-2 weeks)
  • metric threads are .800-36, designed specifically to be interchangeable with Osmun, Paxman and Halstead-Chidell mouthpiece rims and are offered in sizes larger than the inch models.
  • multiple shank choices to fit your horn perfectly. (European and Schmid special order 1-2 weeks)
  • bright silver plated cup (gold plated cups allow for 1-2 weeks delivery)


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Siegfried's Call is proud to provide you with products optimized to suit your very personal tastes and musical requirements. As a result, many items we offer online are highly customizable and made to order according to your specifications.

Special Orders

After choosing your preferred item(s), please contact us for a supplier's delivery schedule, and then special order the item after we have confirmed the estimated shipping date.

Siegfried's Call will maintain communication with our suppliers and forward that information directly to you during the waiting period.