Jensen P8R 25W 8'' Replacement Alnico Speaker 4 OHM
The 25 watt P8R is an alnico magnet speaker that remains warm with emphasis on the highs. This speaker produces a nice warm fuzz when driven by an amplifier.
- Overall Diameter: 8 in
- Voice Coil Diameter: 1.00 in
- Magnet Weight: 7.00 oz
- Overall Weight: 2.64 lbs
- Flux Density: 0.96 T
Thiele-Small Parameters
- Voice Coil DC Resistance: 6.60 Ω
- Resonance Frequency: 135.0 Hz
- Mechanical Q Factor: 8.67
- Electrical Q Factor: 2.30
- Total Q Factor: 2.28
- Mechanical Moving Mass: 8.8 g
- Mechanical Compliance: 159 µm/N
- Force Factor: 3.99 Wb/m
- Acoustic Volume: 10.3 lt.
- Linear Displacement: 1.00 mm
- Reference Efficiency: 0.95%
- Diaphragm Area: 213.8 cm2
- Electrical Resistance: 27.0 Ω
- Voice Coil @ 1kHz: 0.36 mH
Constructive Characteristics
- Magnet: Alnico
- Voice Coil Winding: Copper
- Voice Coil Former: Epotex
- Cone: Paper
- Surround: Integrated Paper
- Dust Dome: Solid Paper
- Basket: Pressed Sheet Steel
Electrical Characteristics
- Nominal Impedance: 4 Ω
- Rated Power: 25 W
- Musical Power: 50 W
- Sensitivity@1W,1m: 91.8 dB