QuadraS-HP is a compact installation-specific sub-bass system designed to visually and acoustically integrate with the Quadra Series, maintaining the same boxy yet elegant design language. It represents the dedicated low-frequency extension unit of the range, engineered to deliver high performance within an ultra-compact footprint.

The system features a single 8-inch long-excursion transducer loaded in a band-pass configuration, optimized to maximize acoustic efficiency, control cone motion, and reduce distortion while delivering extended low-frequency performance. Despite the small driver size, the design ensures a remarkably powerful and controlled bass response that exceeds expectations for its class.

The band-pass architecture provides significant acoustic advantages, including improved efficiency, reduced distortion, and extended low-frequency response down to 45 Hz, with usable output reaching 40 Hz at -10 dB. This ensures smooth, precise, and well-defined bass reproduction, maintaining high listening comfort even at elevated levels.

QuadraS-HP is specifically designed to extend the performance and headroom of Quadra full-range systems, enhancing their low-frequency contour and enabling a wide operational bandwidth from 40 Hz up to 20 kHz when deployed as part of a complete system.

When combined with Quadra full-range loudspeakers, the system benefits from optimized acoustic alignment that allows close coupling between sub-bass and full-range elements. This configuration enables the creation of a true point-source system, delivering a coherent wavefront across the entire frequency spectrum for improved phase consistency and sound integration.

Installation flexibility is a key feature of QuadraS-HP. The top panel includes two M6 threaded inserts for secure mounting options, while a built-in M20 pole-mount adapter allows direct installation of Quadra full-range loudspeakers. In addition, a dedicated flying bracket enables ceiling-mounted configurations, with or without attached full-range speakers.

QuadraS-HP is ideally suited for permanent and temporary installations where ultra-high sound pressure levels are not the primary requirement, making it perfect for distributed audio environments such as small clubs, lounge bars, restaurants, and similar venues. It is also well suited for home cinema applications, including Dolby systems, as well as broadcast and studio environments where controlled and extended low-frequency response is essential.

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.