Elkhart-era Conn 32H “Burkle” model trombone, made in 1949 and designed by Jay Burkle himself. This is one of Conn’s most unique and enduring jazz horn designs, often called a hidden gem among vintage players. Features a 7.5" yellow brass bell and a .500/.522 dual bore handslide with extended 7th position. The bell section is unlacquered and made of yellow brass, offering a resonant, rich tone with crisp articulation.
The handslide includes a nickel silver end crook specifically tapered to accommodate the bore transition — a design distinction that sets the 32H apart from other dual bore horns by makers like Bach or King. While there are some cosmetic signs of “Conn wear” in typical areas, the slide action is solid, smooth, and fully functional. This horn has been well cared for and cleaned, and it's ready to play.
Collectors and pro-level commercial players alike will appreciate how this model handles. It’s light in the hand, incredibly responsive, and offers a sweet, vibrant tone that blends beautifully in jazz sections — especially when matched with other Conn players. Case included.
What is a dual bore trombone, and how does it affect playability?
A dual bore trombone features two different internal diameters in the handslide — smaller at the upper slide tube, and slightly larger at the lower tube. This gradual expansion allows for a more open feel as air moves through the slide. Many players find this design offers increased flexibility, enhanced response, and a smoother blow compared to single bore instruments.
Why did Conn use a .500/.522 dual bore on the 32H?
The .500/.522 bore combination was chosen to blend the focused, agile feel of a smaller bore horn with the warmth and breadth of a medium bore. Jay Burkle’s design aimed to create a versatile jazz/commercial horn that projected well in big bands but remained nimble enough for solo work. The custom-tapered end crook on the 32H makes the design uniquely Conn.
How does the Conn 32H compare to other dual bore models?
Unlike dual bore models from Bach or King, the Conn 32H’s slide crook and bell section were purpose-built to match the bore transition. This results in a smoother airflow and better balance across registers. The extended 7th position on the 32H slide is also a rare and thoughtful design element that makes low register playing more accessible.
This vintage Conn 32H has been sold and is now shown here as part of our historical archive.
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