Scan-Speak Illuminator 18WU/4747T00
4Ω
Woofer
| Nominal diameter | 8″ / 180 mm |
| Resonance | 36 Hz |
| Q factor | 0.35 |
| Sensitivity | 87.9 dB |
| Linear excursion | ± 9 mm |
| Program Power | 150 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 87.9dB
- Frequency response 36 - 4000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 36Hz
- Mechanical quality factor QMS 3.72
- Electrical quality factor QES 0.39
- Total quality factor QTS 0.35
Large signal parameters
- Maximum linear excursion (one way) xmax 9mm
- Maximum excursion before damage xlim 16mm
- Air volume displaced at xmax VD 139cm³
- Power handling P 70W
- Program power Pmax 150W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.3Ω
- Inductance (1kHz, estimated) LE 0.5mH
- VC Diameter 42mm
- Winding height HVC 8mm
Magnet
- Force factor Bl 5.9N/A
- Motor constant Bl/√RE 3.25N/√W
- Air gap height HAG 20mm
- Material Neodymium
Diaphragm
- Effective diameter 140mm
- Effective area SD 154cm²
- Moving mass MMS 18.1g
- Moving mass (without air load) MMD 16.7g
- Material Anodized Aluminium
Suspensions
- Stiffness KMS 0.909N/mm
- Compliance CMS 1100µm/N
- Equivalent volume to the compliance VAS 36L
- Mechanical resistance RMS 1.1N·s/m
Dimensions
- Nominal diameter 8″
- 180mm
- Volume occupied by the driver 0.45L
- Net weight 1.7kg
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Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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