Conn 14D Single French Horn USAThis single horn in F offers beginning students an opportunity to learn the F side of the horn before advancing on to a double horn. FEATURES The C. G. Conn 14D is a single F horn that offers a very centered pitch for beginning players. The small throat yellow brass bell provides ease of response and focused tone to aid young players in developing a solid core sound. TECH SPECS C. G. Conn Key of F, . 468" bore, 12" small throat yellow brass bell,