B ♭ pipe. Valve system is 4 pistons. Bell has a yellow brass diameter of 280 mm, a bore size of 14.5 mm (first to third) / 15.5 mm (fourth), clear lacquer finish.
B ♭ pipe. Valve system is 4 pistons. Bell has a yellow brass diameter of 280 mm, a bore size of 14.5 mm (1st to 3rd) / 16.8 mm (4th), silver plated finish.
Neo series. B ♭ / F compensating system. Valve system is 4 pistons. The bell has a yellow brass diameter of 300 mm, the bore size is 15 mm (1st to 3rd) / 16.8 mm (4th), silver plated finish.
Custom series B ♭ / F compensating system. Valve system is 4 pistons. Bell has a yellow brass diameter of 300 mm, a bore size of 15 mm (No. 1 to No. 3) / 16.8 mm (No. 4), silver plating (partial gold plating) finish.