Rockford Fosgate P1S4-8
4Ω
8ΩSubwoofer
| Nominal diameter | 8″ / 203 mm |
| Resonance | 40 Hz |
| Q factor | 0.47 |
| Sensitivity | 84.1 dB |
| Linear excursion | ± 8 mm |
| Program Power | 400 W |
Discontinued
Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 84.1dB
Thiele & Small parameters
- Resonance frequency (free air) fS 40Hz
- Mechanical quality factor QMS 4.00
- Electrical quality factor QES 0.48
- Total quality factor QTS 0.47
Large signal parameters
- Maximum linear excursion xmax 8mm
- Air volume displaced at xmax VD 169cm³
- Power handling P 200W
- Program power Pmax 400W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.8Ω
- Inductance (1kHz) LE 2.99mH
- VC Diameter 51mm
Magnet
- Force factor Bl 12.9N/A
- Motor constant Bl/√RE 6.62N/√W
- Weight 1.06kg
Diaphragm
- Effective diameter 164mm
- Effective area SD 211cm²
- Moving mass MMS 83.3g
- Moving mass (without air load) MMD 81.1g
Suspensions
- Stiffness KMS 5.26N/mm
- Compliance CMS 190µm/N
- Equivalent volume to the compliance VAS 12L
- Mechanical resistance RMS 5.23N·s/m
Dimensions
- Nominal diameter 8″
- 203mm
- Baffle cutout diameter 181mm
- Mounting depth 111mm
- Volume occupied by the driver 0.99L
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
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Hornresp
QSpeakers
SpeakerSim
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