The F1 Flugelhorn has a ML bore of 10.5 mm and a standard 400 gram brass valve section. The instrument is available with three different bell diameters of 150mm, 160mm or 170mm.

The F1 is an absolute all-round flugelhorn, suitable for every type of player and style of music. The F1 Flugelhorn was the very first model made in the brass factory of Adams Musical Instruments.