The Bach C180 series C trumpet is a standard Large bore (.462) with a 229 bell. However, since Bach knows that no two people play alike, the C180 is also available with different bore sizes and different bell/leadpipe combinations. Each of these options will change the color of the sound to make this one series of trumpet usable in any performance situation. This specif model has become the most popular one for the orchestral player. The 25H (Herseth) leadpipe is what we would recomend, but there are several others available. Also available is the 239 Bell. PLEASE call us with any questions that would be deciding factors in your purchase!