GRS 12PR-8 12" Paper Cone Foam Surround Woofer

Many popular, classic 10" speaker designs can be replaced or upgraded with a GRS 10PR-8 poly cone woofer.

Resonant frequency fS 32 Hz

Electrical Q QES 1.82

Mechanical Q QMS 4.13

Total Q factor QTS 1.26

Suspension equivalent air volume VAS 95.1 litres

DC resistance RE 7.59 Ω

Voice coil inductance LE 1.4 mH

Maximum linear excursion Xmax ± 3.5 mm

Efficiency η₀ 0.17 %

Efficiency bandwidth product EBP 17

Overall diameter 304.8 mm

Baffle hole diameter 281 mm

Mounting depth 119.1 mm

Diaphragm material Polypropylene

Voice coil diameter 50.8 mm

Magnet Ferrite

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

A GRS 12PR-8 12" 8 ohm polypropylene cone woofer is a good, economical way to repair older speaker systems or create new projects.

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 12PR-8 12" Poly Cone Rubber Surround Woofer

A GRS 12PR-8 12" 8 ohm polypropylene cone woofer is a good, economical way to repair older speaker systems or create new projects.

Specifications for: 12PR-8 12" Poly Cone Rubber Surround Woofer

• Woofer SeriesReplacement woofer
• Woofer TypeMidwoofer
• Nominal Diameter12"
• Power Handling (RMS)100 Watts
• Power Handling (max)140 Watts
• Continuous Program Power
• Impedance8 Ohms
• Sensitivity84 dB 1W/1m
• Frequency Response30 to 3,000 Hz
• Voice Coil Diameter2"
• Magnet Weight
• DC Resistance (Re)7.59 ohms
• Voice Coil Inductance (Le)1.4 mH
• Resonant Frequency (Fs)
• Mechanical Q (Qms)4.13
• Electromagnetic Q (Qes)1.82
• Total Q (Qts)1.26
• Diaphragm Mass Inc. Airload (Mms)
• Moving Mass Of Diaphragm (Mmd)
• Mechanical Compliance of Suspension (Cms)
• Surface Area of Cone (Sd)
• Volume of Displacement (Vd)
• BL Product (BL)
• Compliance Equivalent Volume (Vas)3.36 ft.³
• Maximum Linear Excursion (Xmax)3.5 mm
• Driver's Mechanical Losses (Rms)
• Cone / Diaphragm MaterialPoly
• Surround Material
• Voice Coil Wire Material
• Voice Coil Former
• Dual Voice Coil
• Basket / Frame Material
• Magnet MaterialFerrite
• Shielded
• Overall Outside Diameter12"
• Overall Depth4.6875"
• Baffle Cutout Diameter11.0625"
• Bolt Circle Diameter
• # Mounting Holes8
• Mounting Hole Diameter
• Sealed Volume2.72 ft.³
• Sealed F334 Hz
• Vented Volume31 ft.³
• Vented F318 Hz