The JBL STX815M 15" Two-Way Bass-Reflex Stage Monitor is a compact yet powerful passive wedge monitor that is also ideal for general PA applications, DJs and more. The STX815M features a 15" woofer and neodymium compression driver with a 3" diaphragm. The low-profile speaker is designed for minimal obstruction and easy transport. JBL incorporates a waveguide system for precise 70 x 70° audio coverage. The rear panel features two NL4 connections for passive bi-amp and full range operation. A speaker pole insert is built into the base of the cabinet.