The JBL's STX815M 15" two-way bass-reflex stage monitor is a small yet powerful passive wedge monitor that's also good for DJs and other general PA applications. This passive speaker has a 15" woofer and a 3" diaphragm neodymium compression driver. The low-profile speaker is made to be as unobtrusive as possible while also being easy to move. JBL uses a waveguide technique to provide precise audio coverage of 70 x 70 degrees. Two NL4 connections are located on the back panel enabling passive bi-amp and full range operation. A speaker pole insert is incorporated into the cabinet's base.