About the QSC SP-000086-GP 1.4" Aluminum Compression Drivers
The QSC SP-000086-GP represents a professional-grade, precision-engineered high-frequency compression driver designed to deliver exceptional clarity, power handling, and long-term reliability in demanding loudspeaker systems. Utilizing a 1.4-inch exit throat diameter, this driver is engineered to couple with a wide variety of constant-directivity horns, making it a versatile core component for mid-to-high-frequency reproduction in portable PA, fixed installation, and premium cinema sound applications. The core of its design is a lightweight, rigid aluminum diaphragm and voice coil assembly, optimized for pistonic motion with minimal breakup modes well beyond its intended operating range. This results in a detailed, transparent high-frequency output with low distortion, capable of accurately reproducing the subtle nuances of vocals and the crisp transient attack of percussion and brass instruments.
Robust construction is paramount to the driver's performance. The motor structure features a large, efficient ferrite magnet and a carefully engineered magnetic gap with top-tier cooling, enabling the driver to handle high continuous power levels without thermal compression or damage. The integral precision-formed aluminum phase plug is designed to provide smooth, controlled wavefront transition from the voice coil to the driver's exit throat, minimizing high-frequency cancellations and ensuring even energy distribution across the designated coverage pattern. The driver's assembly is built to withstand the physical rigors of the road, featuring a durable multi-layer voice coil former and high-temperature adhesives that ensure mechanical integrity during prolonged high-power operation and in varying environmental conditions.
This driver is specifically designed as a drop-in replacement or service component within QSC's extensive loudspeaker ecosystem, ensuring exact acoustic and mechanical compatibility with systems originally equipped with this model. Its performance characteristics—including sensitivity, frequency response, and power handling—are meticulously tailored to integrate seamlessly with the manufacturer's proprietary passive or active crossover networks and matched low-frequency transducers. For audio technicians and system integrators, the SP-000086-GP offers a reliable, sonically consistent solution for maintaining or upgrading critical loudspeaker components, upholding the intended sonic signature and output capabilities of the complete loudspeaker system for years of service.