STELLAR SOUND AND MASSIVE POWER: The combo set includes 4 x ZETHUS-112BPW line array PA speakers and 1 x ZETHUS-112FF flying frame. The ZETHUS-112BPW is a lightweight and compact line array speaker delivers robust sound quality with one 12 woofer and two 1.4 titanium compression drivers. A built-in powerful Class-D amplifier generates 400W continuous, 800W peak power PROFESSIONAL DSP: The ZETHUS-112BPW line array loudspeaker incorporates a built-in Class-D power amplifier with professional onboard digital signal processor (DSP), ensuring optimal system optimization. This advanced technology enhances the overall sound quality and ensures precise audio control EASY INTEGRATION AND FLEXIBLE MOUNTING: Built-in rigging hardware, up to 4 line array speakers can be stacked together and secured with safety pins. The multiple flying points and flying frame ZETHUS-112FF provide a variety of suspension options. Altogether they deliver accurate and immersive sound performance at shaking volume.