Jensen Vintage AlNiCo P8R
4Ω
8ΩGuitar Speaker
8″ / 207 mm
Nominal diameter
129 Hz
Resonance
1.43
Q factor
96 dB
Sensitivity
± 1 mm
Linear excursion
50 W
Program Power
![Jensen P8R Guitar Speaker](/Jensen/P8R_4Ω/Jensen_P8R_4Ω_(Photo_1).png)
![Jensen P8R Guitar Speaker](/Jensen/P8R_4Ω/Jensen_P8R_4Ω_(Photo_2).png)
![Jensen P8R Guitar Speaker](/Jensen/P8R_4Ω/Jensen_P8R_4Ω_(Photo_3).png)
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 95.7
- dB
- Resonance frequency (free air)
- fS
- 129
- Hz
- Mechanical quality factor
- QMS
- 8.67
- Electrical quality factor
- QES
- 1.71
- Total quality factor
- QTS
- 1.43
- Maximum linear excursion
- xmax
- 1.0
- mm
- Air volume displaced at xmax
- VD
- 21
- cm³
- Power handling
- P
- 25
- W
- Program power
- Pmax
- 50
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.0
- Ω
- Inductance (1kHz)
- LE
- 0.21
- mH
- VC Diameter
- 25
- mm
- Winding height
- HVC
- 4
- mm
- Winding material
- Copper
- Former material
- Epotex
- Flux density
- B
- 0.96
- T
- Force factor
- Bl
- 3.72
- N/A
- Motor constant
- Bl/√RE
- 2.15
- N/√W
- Air gap height
- HAG
- 6
- mm
- Weight
- 0.2
- kg
- Material
- Alnico
- Effective diameter
- 165
- mm
- Effective area
- SD
- 214
- cm²
- Moving mass
- MMS
- 9.3
- g
- Moving mass (without air load)
- MMD
- 7
- g
- Material
- Paper
- Stiffness
- KMS
- 6.1
- N/mm
- Compliance
- CMS
- 164
- µm/N
- Equivalent volume to the compliance
- VAS
- 10.5
- L
- Mechanical resistance
- RMS
- 0.87
- N·s/m
- Surround material
- Integrated Paper
- Nominal diameter
- 8
- ″
- 207
- mm
- Overall diameter
- 207
- mm
- Volume occupied by the driver (estimated)
- 0.48
- L
- Net weight
- 1.2
- kg
- Frame material
- Pressed Sheet
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
![Jensen P8R Dimensions](/Jensen/P8R_4Ω/Jensen_P8R_4Ω_(Dimensions).png)
Export this driver to a simulation software:
![WinISD](/images/export/WinISD.png)
![Basta!](/images/export/Basta.png)
![Hornresp](/images/export/Hornresp.png)
![QSpeakers](/images/export/QSpeakers.png)
![SpeakerSim](/images/export/SpeakerSim.png)
![MfbLabs](/images/export/MfbLabs.png)
![Speakerbench](/images/export/Speakerbench.png)