GRS 15SSW-4HE Subwoofer

The GRS 15SSW-4HE 15" High Excursion Super Subwoofer is a formidable driver engineered to deliver deep, authoritative low-end response for the most demanding audio applications. Whether you are building a high-performance home theatre system that brings cinematic explosions to life, or upgrading a car audio installation for chest-thumping bass, this subwoofer provides the foundation for an immersive listening experience. Its robust construction also makes it an excellent choice for custom enclosure designs where maximum output and control are paramount.

At the heart of this subwoofer lies a treated paper cone, chosen for its ideal balance of stiffness and damping, which works in concert with a generous 12.3mm linear excursion (Xmax) to move substantial air with precision. The 4-ohm copper voice coil, with a DC resistance of 4.2 ohms and an inductance of 3.7 mH, ensures efficient power handling and controlled motor behaviour. A total Q factor (Qts) of 0.49, derived from a mechanical Q (Qms) of 4.27 and an electromagnetic Q (Qes) of 0.55, indicates excellent alignment for sealed or ported enclosures, while the 90 dB sensitivity rating guarantees impressive output from modest amplifier power. With a nominal diameter of 381 mm and a mounting depth of 188 mm, this subwoofer is a serious performer for those seeking uncompromising low-frequency reproduction.