Bach Double Trigger Bass Trombones

Bach 50B3O Stradivarius Series Professional Open Wrap Double Rotor Bass Trombone

Bach 50AF3 Stradivarius Series Professional Open Wrap Bass Trombone with Double Infinity Valves

Bach 50B3 Stradivarius Series Professional Standard Wrap Double Rotor Bass Trombone

Bach 50A3 Stradivarius Series Professional Open Wrap Bass Trombone with Double Hagmann Valves