HV-A1 : Eb Alto trombone – small bore (s)
The Helmut Voigt model HV-A1 Eb Alto trombone is designed for the player looking for a traditional sound alto trombone. Alto trombone HV-A1 feature a .455-inch bore, or .455/.468-inch dual-bore slide and a 6 1/2-inch one-piece hand-hammered bell.
HV-A2 : Eb Alto trombone – medium large bore (ml)
This new Alto trombone model from Helmut Voigt is designed for a true alto voice, with clarity and enough breadth of sound for a large orchestra.
Alto trombone HV-A2 feature a .484-inch bore, or .468/.484-inch dual-bore slide and a 7-inch one-piece hand-hammered bell.
HV-A3 : Eb Alto trombone – large bore (L)
Manfred Zeumer, earlier principal trombone Staatskapelle Dresden had the idea for this large bore Alto trombone HV-A3. Alto trombone feature a 7 1/2-inch one-piece hand-hammered bell and a dual-bore slide.
HV-A4 : F Alto trombone – small bore (s)
The Helmut Voigt model HV-A4 F Alto trombone is designed for the player looking for a traditional sound alto trombone. Alto trombone HV-A4 feature a .455-inch bore slide and a 6 inch one-piece hand-hammered bell.
Model Aline Nistad : Es Alto trombone
The model Aline Nistad is based on the model HV-A1 with sylindrical slide. It is a result of a collaboration with Aline Nistad (1954 – 2017), Docent at the musical college of Oslo and a solo trombonist in the Oslo Philharmonica. The instrument is equiped with a changeable Quart valve, and a separate “Gooseneck” is also included.