- Stock: In Stock
- Brand: GRS - Great Replacement Speakers
- Model: 5PF-8
- Weight: 2.00 Kg
Product Details
GRS 5PF-8 5-1/4" Paper Cone Foam Surround Woofer.
Resonant frequency fS 100 Hz
Electrical Q QES 1.97
Mechanical Q QMS 4.87
Total Q factor QTS 1.40
Suspension equivalent air volume VAS 3.1 litres
DC resistance RE 7.45 Ω
Voice coil inductance LE 0.85 mH
Maximum linear excursion Xmax ± 2.5 mm
Efficiency η₀ 0.15 %
Efficiency bandwidth product EBP 50
Overall diameter 128.6 mm
Baffle hole diameter 120.7 mm
Mounting depth 58.7 mm
Diaphragm material Treated Paper
Surround material Foam
Voice coil diameter 25.4 mm
Magnet Ferrite
The GRS 5PF-8 5-1/4" woofers feature a poly-laminate coated cone and a foam surround. They are ideally suited for all sealed-box speaker applications. Thanks to their carefully optimized parameters, GRS 5PF-8 5-1/4" poly-laminated paper cone woofers offer a high degree of compatibility when used as replacement speakers—they also provide excellent performance in new projects, too.
Specifications for: 5PF-8 5-1/4" Paper Cone Foam Surround Woofer
- Woofer SeriesReplacement woofer
- Woofer TypeMidwoofer
- Nominal Diameter5-1/4"
- Power Handling (RMS)70 Watts
- Power Handling (max)130 Watts
- Continuous Program Power
- Impedance8 ohms
- Sensitivity84 dB 1W/1m
- Frequency Response90 to 8,000 Hz
- Voice Coil Diameter1"
- Magnet Weight
- DC Resistance (Re)7.45 ohms
- Voice Coil Inductance (Le)0.85 mH
- Resonant Frequency (Fs)100 Hz
- Mechanical Q (Qms)4.87
- Electromagnetic Q (Qes)1.97
- Total Q (Qts)1.4
- 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)0.11 ft.³
- Maximum Linear Excursion (Xmax)2.5 mm
- Driver's Mechanical Losses (Rms)
- Cone / Diaphragm MaterialTreated Paper
- Surround MaterialFoam
- Voice Coil Wire Material
- Voice Coil Former
- Dual Voice Coil
- Basket / Frame Material
- Magnet MaterialFerrite
- Shielded
- Overall Outside Diameter5.0625"
- Overall Depth2.3125"
- Baffle Cutout Diameter4.75"
- Bolt Circle Diameter
- # Mounting Holes4
- Mounting Hole Diameter
- Sealed Volume0.08 ft.³
- Sealed F3107 Hz
- Vented Volume1.26 ft.³
- Vented F354 Hz