Blackburn Bb and C Trumpet Leadpipes for Bach Stradivarius*Blackburn Leadpipes are made to order. Lead times vary, but the average is about 2 weeks* Blackburn Leadpipes are known throughout the world for their superb intonation and response. Each and every pipe is handcrafted in the USA! Blackburn makes a wide variety of pipes for Bach Stradivarius Bb and C trumpets. The options are as follows: 11: A great option for commercial and lead players! It has fantastic intonation and a brilliant well centered tone.