Professional Powered Line Array Loudspeaker System

The QSC KLA12 is a professional active line array loudspeaker designed for live events, corporate productions, houses of worship, touring applications, and medium to large-scale sound reinforcement systems. As part of QSC’s KLA Series, it delivers high-output performance, fast deployment, and consistent coverage in a lightweight, integrated system built for portable and installed AV environments.

High-Output Line Array Performance

Each KLA12 features a 12-inch low-frequency driver paired with a 1.75-inch high-frequency compression driver, powered by a bi-amplified Class-D module delivering approximately 500W per channel (1000W total). The system is capable of reaching up to approximately 131 dB peak SPL, providing strong output for speech and music reinforcement in a wide range of venue sizes. Its 90° horizontal by 18° vertical dispersion pattern allows precise coverage control when deployed in arrays.

Fast Deployment & Array Flexibility

The KLA12 is designed around QSC’s “Lift, Click and Play” deployment system, allowing rapid setup compared to traditional line array systems. Up to multiple enclosures can be flown or ground-stacked using integrated rigging hardware, and up to five KLA units can be powered efficiently from a single 15-amp circuit when combined with compatible subs in the KLA Series ecosystem.

Lightweight Touring-Grade Design

Built with a rugged yet lightweight ABS enclosure, the KLA12 is engineered for portability and durability in demanding rental and production environments. Its integrated amplification and signal processing reduce external rack requirements, making it an efficient all-in-one solution for production companies, event venues, and touring systems that need reliable performance with minimal setup time.