C.G. Conn is the world most famous trombone manufacturer.  Every instrument is 100% made in Eastlake, Ohio, USA.  
With an ear attuned to every musical nuance, Christian Lindberg was constantly irritated by the inevitable “pop” when he engaged or disengaged the rotor on his trombone and by the difference in sound between the F and Ba sides on all trombone rotors.  Lindberg’s father-in-law, Bela Tarrodi, is an exceptionally good machinist and instrument maker. In 1995 Lindberg sketched for him the requirements for the perfect F valve. Over time they developed what Lindberg knew was a winning design. “What a revelation,” Lindberg recalls. “No flop! No pop! The F side of the horn sounded and felt like a straight tenor.” They had created a valve with a balanced feel in either the engaged and disengaged position. Additionally, the throw of the valve was more than 40 percent less than that of the standard rotor. Lindberg immediately went on tour with the new rotor, and other artists became enthused about it.



Christian Lindberg is well-known as an internationally touring trombone soloist. During his long career, he has insisted on the exceptional performance characteristics of 88H Series trombones from C.G. Conn.  The recent development of the CL2000 Rotor System is a culmination of the performance expertise of Christian Lindberg combined with the advanced technology inherent in every C.G. Conn instrument.
Using its sophisticated technology and engineering ingenuity, Conn made Tarrodi’s prototype into a production model. This version of the CL2000 was a hit with many musicians; however, some felt that the rotor was too heavy for such a short throw. As soon as the rotor was put in motion, the movement was complete. They wanted a rotor that was more “touch responsive.”  To make the solid brass rotor lighter would alter the the sound of the horn. Then, Conn’s engineering staff suggested trying a special material for the rotor, an anodized aircraft aluminum. Together with Lindberg and Tarrodi, they came up with three changes to make the new material work : add an extra brace just above the rotor to stabilize the instrument both acoustically and structurally ; compensate for the reduced weight of the rotor by increasing the weight of the valve cap; and utilize UMI’s technology to create new standards in precision rotor fitting. The result is the shortest throw available combined with incredibly fast action, and a choice of heavy or light rotor caps for personal control of sound and response.

How it works
The CL2000 rotor is a single moving part, a tapered cylinder that rotates on a fixed axis. Inside the cylinder are two airways side by side. The air channels are formed by one straight tube gently curved at each end adjacent to a second straight tube that features a Y branch to divert the air column. When closed, the straight section of the Y tube lets air flow directly from the handslide to the bell while the other tube is shut off from the F section. When engaged, the Y tube funnels air from the handslide into the F section of tubing. The air then flows through the second passageway and into the bell section.  Trombonists have long wanted an instrument with matching performance characteristics with or without the valve engaged. 

The new CL2000 not only allows the instrument to have similar response, sound, and feel on both the Ba and F sides of the instrument, but the innovative design provides for a smooth transition by acting as a diverting valve rather than as a simple change valve. The effect: no pop, no flop, and a unique improvement in trombone performance from the most respected name in trombones, C.G. Conn.

• .547" (13,89 mm) bore
• 8-1/2" (216 mm) rose brass bell
• patented CL2000 F rotor system
• open wrap
• rose brass outer slide
• hard silver chrome inner slide
• lacquer finish
• one piece hand hammered bell 
• 5G Conn mouthpiece
• deluxe woodshell case