06/11/2026
Here is a Elkhart M Series Conn 88H slide that I did an interchangeable screw in leadpipe conversion on. My customer wanted to try different leadpipes in his trombone, and this is a solid way of doing this work.
There are many variations when it comes to trombone leadpipes, that can affect tone, resistance, focus, etc.
Variations include venturi size, which is basically the inside taper, which affects how it blows, how it opens up your sound, or restricts it.
The length, and the material the leadpipe makes a difference. Leadpipes have been made in yellow brass (standard), gold brass, rose brass, sterling silver, and nickel silver. The material can affect resonance, and projection.
The first several inches of a trombone are quite critical.