Osmun Standard Horn Cup - Osmun Music

We specialize in professional grade trumpets, horns, accessories, and repairs. Custom brass mouthpieces are a specialty.

Choosing a French Horn Mouthpiece (I): The Basic Parts, Horn Matters, A French Horn and Brass Site and Resource

Bach Cleveland Model C Trumpet at Osmun Music

Jon Talks Trumpet

Osmun horn mouthpieces are the result of many years of playing and working with horn players.

Osmun Music Osmun French Horn Mouthpiece Cup

Choosing a Mouthpiece for Horn - My Process and Thoughts

Used Osmun TA trumpet, gold rim and cup [431]

Osmun horn mouthpieces are the result of many years of playing and working with horn players.

Osmun Music Osmun French Horn Mouthpiece Rim

, Our metric rims measure 17.5mm where they meet the cup and have Paxman Halstead-Chidell .800-36 threads. They fit our metric cups as well as those

Osmun Metric Horn Rim

, Our standard rims measure .650 where they meet the cup and have Giardinelli standard .750-36 threads. They fit our standard cups as well as those

Osmun Standard Horn Rim

Mouthpieces – Horn Matters, A French Horn and Brass Site and Resource