GRS 12PT-8 Woofer

The GRS 12PT-8 is a 12-inch professional woofer engineered to deliver authoritative, natural-sounding bass and mid-bass for a wide range of audio applications. Its lightweight yet rigid paper and fibreglass cone provides efficient, articulate low-frequency reproduction with minimal coloration, making it an excellent choice for high-fidelity sound reinforcement, custom loudspeaker designs, and musical instrument cabinets. Whether you are building a dedicated subwoofer system, a full-range two-way speaker, or upgrading an existing enclosure, this driver offers the performance and reliability demanded by discerning audio professionals and enthusiasts alike.

Technically, the 12PT-8 features a 3-inch copper voice coil with an 8-ohm impedance and a DC resistance of 7.6 ohms, ensuring robust power handling and stable operation. With a sensitivity of 93 dB SPL (1m/2.83V) and a total Q factor (Qts) of 0.39, it is well-suited for both sealed and vented enclosures, delivering deep, controlled extension. The mechanical Q (Qms) of 12.1 and electrical Q (Qes) of 0.4 contribute to a clean, transient response, while the 7.8 mm linear excursion (Xmax) allows for impressive output without distortion. The woofer’s 276.9 mm cutout diameter and eight mounting holes ensure straightforward installation, and its 129.8 mm depth accommodates compact cabinet designs. Combining a paper/fibreglass cone with a robust motor assembly, the GRS 12PT-8 offers exceptional value for those seeking high-quality low-frequency performance.