ALPINE S2-W12D4
2x2Ω
2x4Ω
Subwoofer
| Nominal diameter | 12″ / 300 mm |
| Resonance | 28.8 Hz |
| Q factor | 0.44 |
| Sensitivity | 86.1 dB |
| Linear excursion | ± 15 mm |
| Program power | 1200 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 86.1dB
- Frequency response 23 - 215Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 28.8Hz
- Mechanical quality factor QMS 5.90
- Electrical quality factor QES 0.47
- Total quality factor QTS 0.44
Large signal parameters
- Maximum linear excursion (one way) xmax 15mm
- Maximum excursion before damage xlim 32mm
- Air volume displaced at xmax VD 708cm³
- Power handling P 600W
- Program power Pmax 1200W
- Peak power Ppeak 1800W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 7.2Ω
- Inductance (1kHz, in series) LE 6.2mH
- VC Diameter 65.5mm
- Former material Aluminum
Magnet
- Force factor (in series) Bl 22.8N/A
- Motor constant Bl/√RE 8.5N/√W
- Diameter 155mm
- Weight 1.81kg
- Material Ferrite
Diaphragm
- Effective diameter 245mm
- Effective area SD 472cm²
- Moving mass (including air load) MMS 187g
- Moving mass MMD 182g
- Material Polypropylene / Carbon Fiber
Suspensions
- Stiffness KMS 6.14N/mm
- Compliance CMS 163µm/N
- Equivalent volume to the compliance VAS 51.5L
- Mechanical resistance RMS 5.75N·s/m
- Surround material HAMR Surround
- Spider material Progressive Spider
Dimensions
- Nominal diameter 12″
- 300mm
- Overall diameter 322mm
- Baffle cutout diameter 273mm
- Overall depth 149mm
- Flange thickness 25mm
- Mounting depth 124mm
- Volume occupied by the driver 1.7L
- Frame material Steel
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Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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