GRS 4SMP-4
4Ω
8ΩWoofer
| Nominal diameter | 4″ / 115 mm |
| Resonance | 58 Hz |
| Q factor | 0.55 |
| Sensitivity | 82.4 dB |
| Linear excursion | ± 4 mm |
| Program power | 60 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 82.4dB
- Frequency response 50 - 6000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 58Hz
- Mechanical quality factor QMS 3.05
- Electrical quality factor QES 0.67
- Total quality factor QTS 0.55
Large signal parameters
- Maximum linear excursion (one way) xmax 4mm
- Air volume displaced at xmax VD 22cm³
- Power handling P 30W
- Program power Pmax 60W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.7Ω
- Inductance (1kHz) LE 0.32mH
- VC Diameter 26mm
- Former material Aluminum
Magnet
- Force factor Bl 3.9N/A
- Motor constant Bl/√RE 2.03N/√W
- Diameter 80mm
Diaphragm
- Effective diameter 83mm
- Effective area SD 54cm²
- Moving mass (including air load) MMS 7.7g
- Moving mass MMD 7.4g
- Material Damped poly cone
Suspensions
- Stiffness KMS 1.02N/mm
- Compliance CMS 980µm/N
- Equivalent volume to the compliance VAS 4L
- Mechanical resistance RMS 0.92N·s/m
- Surround material Rubber
Dimensions
- Nominal diameter 4″
- 115mm
- Overall diameter 115mm
- Baffle cutout diameter 93mm
- Overall depth 60mm
- Flange thickness 5mm
- Mounting depth 55mm
- Volume occupied by the driver (estimated) 0.2L
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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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