GRS 12SW-4
4HE
4Ω
Subwoofer
| Nominal diameter | 12″ / 311 mm |
| Resonance | 32 Hz |
| Q factor | 0.82 |
| Sensitivity | 85.8 dB |
| Linear excursion | ± 8.5 mm |
| Program power | 240 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 85.8dB
- Frequency response 29 - 800Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 32Hz
- Mechanical quality factor QMS 4.01
- Electrical quality factor QES 1.02
- Total quality factor QTS 0.82
Large signal parameters
- Maximum linear excursion (one way) xmax 8.5mm
- Air volume displaced at xmax VD 426cm³
- Power handling P 120W
- Program power Pmax 240W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.7Ω
- Inductance (1kHz) LE 1.2mH
- VC Diameter 51mm
Magnet
- Force factor Bl 9.5N/A
- Motor constant Bl/√RE 4.94N/√W
- Diameter 134mm
- Height 20mm
Diaphragm
- Effective diameter 253mm
- Effective area SD 501cm²
- Moving mass (including air load) MMS 125g
- Moving mass MMD 117g
- Material Polypropylene
Suspensions
- Stiffness KMS 5N/mm
- Compliance CMS 200µm/N
- Equivalent volume to the compliance VAS 69.2L
- Mechanical resistance RMS 6.25N·s/m
- Surround material Butyl rubber
Dimensions
- Nominal diameter 12″
- 311mm
- Overall diameter 311mm
- Baffle cutout diameter 288mm
- Overall depth 147mm
- Flange thickness 10mm
- Mounting depth 137mm
- Volume occupied by the driver (estimated) 2.5L
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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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