GRS 8PR-8 8" Poly Cone Rubber Surround Woofer

The GRS 8PR-8 is an 8-inch poly cone woofer engineered for precise mid-bass and subwoofer performance, offering a compelling blend of durability and acoustic accuracy. Its polypropylene cone and rubber surround work in tandem to minimise distortion, ensuring clean, controlled sound reproduction across a range of applications. This driver is ideally suited for sealed enclosure designs, where its carefully balanced parameters deliver a tight, articulate low-end response. It excels in stereo systems, home theatre setups, or as a dedicated mid-bass unit in multi-way speaker configurations, providing a solid foundation for detailed audio.

Technically, the 8PR-8 features a total Q factor (Qts) of 1.11, which, combined with a mechanical Q (Qms) of 4.77 and an electrical Q (Qes) of 1.45, enables a well-damped response ideal for sealed boxes. The 8-inch polypropylene cone offers stiffness and low mass, while the rubber surround enhances longevity and reduces resonance. With a maximum linear excursion (Xmax) of 3 mm and a sensitivity of 85 dB SPL (1m/2.83V), this driver balances efficiency with controlled movement. The ferrite magnet and 7.58 ohm DC resistance (Re) contribute to stable performance, and the 185.9 mm cutout diameter with four mounting holes simplifies installation. At 87.4 mm depth, it fits neatly into compact enclosures, making it a versatile choice for audiophiles seeking reliable, low-distortion bass.