Traditional Ricco Kühn horns are essentially based on the design of Reissmann/Börner models. In the course of development however the design of the tapered parts has been modified to conform to the latest advances in knowledge. The current models, from the single Bb horn through to the double horn, are very mature. They have a pleasant resistance, a light, even response in all registers and a thrilling, huge, noble sound, from piano through to fortissimo. Soft slurs are as easy to play as a precise articulation. The introduction of the first triple horn in 2003 marked the development of a new range of models. A great deal of consultation and close collaboration with musicians resulted, in a relatively short space of time, in several models with the same basic components. The design of those “Custom” models W 293X and W 293X-S received benefit from our experience in designing and making triple horns. The valve position, even balance in handling and the long leadpipe offers a very interesting alternative between the easy playable Geyer models and our triple horns which focuses and carries the sound in the hall very well. Those have a great sound adaptability and very smooth in pp and focused in ff.