The #12M has medium dark sound that is slightly darker than the #12. This leadpipe is a popular choice for players who want a leadpipe that will warm up their sound, without sounding excessively dark.
If you wish to use a Blackburn leadpipe in C on your Bach C trumpet, a tuning slide adjustment might be needed. We recommend using our Blackburn tuning slides, as your original Bach tuning slide might need to be altered.
