This Model IV is a custom large bore symphonic tenor trombone made by Manfred Schmelzer in Germany. Manfred is retiring in 2024, so this is the last one we'll see. A lightweight instrument with an axial rotor like this is captivating, and the bell kranz keeps the tone in check. It's especially resonant and fast.
Besides the nickel garland on the bell (kranz), this has a reverse F slide to add more mass to the slide and its connection to the horn. The minimal bracing allows the bell to fully vibrate. The grip for the hand is not overly large and the trigger throw is fairly short for this design. The bell is ornately engraved, suiting its German heritage. The hand slide end crook is slightly straighter through the middle than US designs. The tuning slide and F slide have the same very round radius. This shape puts a little more length of the instrument within the tuning slide rather than in the neckpipe, so it plays more open, a little larger, faster.
This is a terrific playing horn, it makes me want to keep it.
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