Quadra4, also known as “The Four”, is an ultra-compact loudspeaker and one of the smallest models in the Quadra Series. With a footprint of just 130 mm per side, it is designed for maximum installation flexibility and can be easily handled and positioned in even the most restricted architectural spaces. Weighing approximately 0.8 kg, it offers a highly discreet solution for distributed audio applications where size and visual impact must be minimized.

The system is based on a single 4-inch full-range transducer, one of the most compact Loud Professional drivers used in a full-range configuration. Despite its reduced dimensions, Quadra4 delivers a surprisingly powerful and coherent sound reproduction, with carefully optimized low-frequency support that ensures an impactful performance for its size category.

Quadra4 is designed for seamless integration in distributed sound systems, making it ideal for commercial environments such as shopping malls, retail spaces, restaurants, lounge bars, residential installations, and private events. Its compact form factor allows it to blend naturally into architectural spaces, effectively becoming visually unobtrusive while maintaining consistent acoustic coverage. The availability of customizable cabinet colors and front grille fabrics further enhances its ability to adapt to any interior design requirement.

A comprehensive mounting system ensures maximum installation versatility. Quadra4 can be wall- or ceiling-mounted using its dedicated bracket, which can be fixed on both sides (left/right and top/bottom) via four integrated M6 threaded inserts. The same bracket can also be used to mount the loudspeaker directly onto the QuadraS-HP subwoofer top panel in a close-coupled configuration, forming a true point-source system for enhanced acoustic coherence.

In addition, Quadra4 can be installed on microphone stands or standard speaker stands using a dedicated adapter, allowing precise tilt and orientation adjustment. A pole-mounting kit also enables installation on compatible subwoofer systems such as QuadraS-HP, NucleoS, and GammaS8, extending the system’s low-frequency response down to 45 Hz in stand-alone configurations.

The system is also suitable for small-scale live performance applications when properly configured, offering a compact yet capable solution for portable reinforcement setups.

The rear panel is equipped with two 4-pole Phoenix™ connectors, optimized for fast and reliable installation in fixed and distributed audio systems.

High construction standards, advanced manufacturing techniques, and innovative materials ensure long-term reliability in demanding professional environments. The enclosure is constructed from marine-grade birch plywood and finished with a durable, impact- and weather-resistant PCP (Polyurea Cabinet Protection) coating. A wide range of color options, aligned with the RAL Architectural Program, allows full integration into any architectural or interior design project.