The GRS 8PR-8 8" woofer features a polypropylene cone and a rubber surround. It performs admirably in sealed-box speaker applications.
Highlights
- Polypropylene cone for perfect balance of stiffness, mass, and self-damping
- Butyl rubber surround ensures high excursion and long term durability
- Stamped steel frame keeps components in perfect alignment
- Optimized motor features high-energy ceramic ferrite magnet, vented pole piece
Product details
GRS 8PR-8 8" Poly Cone Rubber Surround Woofer
The GRS 8PR-8 8" woofer features a polypropylene cone and a rubber surround to produce smooth response with outstanding damping. Thanks to its carefully optimized parameters, this driver is ideal for use in sealed-box speaker applications giving it a high degree of compatibility when used as a replacement speaker—it provides excellent performance in new designs, as well.
Article number8PR-8
EAN0844632088520
Woofer TypeMidwoofer
Power Handling (RMS)65 Watts
Power Handling (max)90 Watts
Impedance (Z)8 ohms
Sensitivity (SPL at 1m / 2.83V)85 dB
Frequency Response40 to 5,000 Hz
Voice Coil Diameter1.5"
DC Resistance (Re)7.58 ohms
Voice Coil Inductance (Le)1.09 mH
Resonant Frequency (Fs)52 Hz
Mechanical Q (Qms)4.77
Electromagnetic Q (Qes)1.45
Total Q (Qts)1.11
Compliance Equivalent Volume (Vas)0.76 ft.³
Maximum Linear Excursion (Xmax)3 mm
Cone / Diaphragm MaterialPoly
Surround MaterialRubber
Magnet MaterialFerrite
Overall Outside Diameter8"
Overall Depth3.44"
Baffle Cutout Diameter7.32"
# Mounting Holes4
Sealed Volume0.81 ft.³
Sealed F354 Hz
Vented Volume5.54 ft.³
Vented F329 Hz