Bruce Roberts has studied with master horn makers around the world, including Keith Berg and George McCracken. He has built traditional horns as well as horns in non-traditional wraps.

Bruce Roberts is a horn designer and builder in California's Bay Area.


On my Schmidt, [Bruce's BR-2 leadpipe] offers a comfortable focus and resistance above the staff without stuffiness in the low range. Clarity of articulation is easily achieved at all dynamics and in all registers. It changes color very evenly, developing brightness and presence at lower dynamics while still offering an incredibly powerful and broad fortissimo.

- Darby Hinshaw, San Diego Symphony 

Horn Forensics   Design, Rebuilds, and Diagnostic Alchemy

There ain’t no party like a pa

The slideshow to the left is of the BR-5, also called the Schmidt 3.0  Like the original C.F. Schmidt horns from the early 20th century, this horn has a piston change valve but it is placed in the middle of the horn so that the thumb lever can be fit to any sized hand. The triangle valve design gives a freer flow through the valve set.


Notice how all the bends are very open and the weight of the horn is shifted more to the bell side. This horn slurs wonderfully!


For more details on this horn go to:

The slideshow to the right is of the BR-3, also known as the Wunderlich horn. The change valve is offset from the other valves so that the airflow  passes through the valves from bottom to top on both the Bb and F horns. The main tuning slide is stacked on top of the F tuning slide in the center of the horn. To the right of that are the  F-3 slide and the Bb-3 slide nested inside. The third crook shapes have fewer bends and the bends are more open than on traditional third slides. The first slides are also more open than tradition bends. Both the BR-5 and the BR-3 horns have a .467" ( 11.9mm) bore  Bb side and a .472"  (12.0mm) bore F side.

For more details on this horn go to: