The Bach C180 series trumpets are the number one selling professional orchestral trumpets in the world. The C180SL229CC “Chicago” C Trumpet features a .462″ large bore, special 25C mouthpipe based on Vincent Bach’s original design, and a lightweight #229 one-piece hand-hammered professional bell with a classic French bead flat rim providing a quick response with outstanding projection and tone. The 1st valve thumb ring allows for easier tuning adjustment. Narrower bell to valve casing and valve casing to mouthpipe braces improve resonance. The silver-plate finish provides a controlled brilliance to the overall sound. The Chicago C trumpet is the perfect choice when you need the sound to immediately reach the back of the hall.