PA system. This is a passive setup. Unit is about 8 years old. Has only been used several times per year and is stored in air conditioning. System includes a 500 watt Yamaha 512 PA. 2 - 15" JBL speakers and 3 - 12" JBL monitors. (can also be used as the main speakers). See pictures for better details. Also include 2 - 100' speaker cables and 2 cable to attach the monitors together.