The JBL LX 2001 is a replacement tweeter designed for various JBL speaker models. It features a faceplate for easy installation and is part of the LX series, which includes other models like the LX 2002, LX 2003, and the LX2000 center tweeter. Users have reported that the replacement process is straightforward, and the sound quality is exceptional following installation. This tweeter is manufactured under the original JBL part number A032266 and is often praised for its reliable performance and high-quality construction.