GRS 15PT-8 Woofer

The GRS 15PT-8 is a professional 15-inch paper cone woofer engineered to deliver deep, authoritative bass with exceptional clarity and efficiency. Designed for demanding audio applications, this driver excels in bass and mid-bass reproduction, making it an ideal choice for high-performance subwoofer systems, PA cabinets, and custom loudspeaker builds. Whether you are constructing a dedicated home theatre subwoofer or reinforcing low frequencies in a live sound rig, the 15PT-8 provides the robust foundation required for immersive, high-impact audio.

At the heart of this woofer lies a 3-inch copper voice coil, which ensures excellent power handling and thermal stability under sustained use. The paper cone, reinforced with fibreglass, offers a lightweight yet rigid diaphragm that minimises breakup and delivers natural, articulate bass. With a sensitivity of 93 dB (1m/2.83V), the driver achieves high output from modest amplifier power, while a total Q factor (Qts) of 0.41 and an Xmax of 7.8 mm enable controlled, extended low-frequency response. The 8-ohm impedance and 7.4-ohm DC resistance simplify system integration, and the robust construction includes a 349.8 mm cutout diameter with eight mounting holes for secure installation. The 15PT-8 is a reliable, high-performance solution for any serious audio project.