Focal SLATEFIBER SUB 20 SF
4Ω
Subwoofer
| Nominal diameter | 8″ / 200 mm |
| Resonance | 36 Hz |
| Q factor | 0.39 |
| Sensitivity | 83 dB |
| Linear excursion | ± 10 mm |
| Program power | 400 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 83dB
Thiele & Small parameters
- Resonance frequency (free air) fS 36Hz
- Mechanical quality factor QMS 3.80
- Electrical quality factor QES 0.42
- Total quality factor QTS 0.39
Large signal parameters
- Maximum linear excursion (one way) xmax 10mm
- Air volume displaced at xmax VD 202cm³
- Power handling P 200W
- Program power Pmax 400W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 2.8Ω
- Inductance (1kHz, estimated) LE 1.29mH
- VC Diameter 52mm
- Winding material Copper
- Former material Glass fiber
Magnet
- Force factor Bl 11.8N/A
- Motor constant Bl/√RE 7.05N/√W
- Diameter 130mm
- Material Ferrite
Diaphragm
- Effective diameter 160mm
- Effective area SD 202cm²
- Moving mass (including air load) MMS 95g
- Moving mass MMD 92.9g
- Material Slatefiber
Suspensions
- Stiffness KMS 5N/mm
- Compliance CMS 200µm/N
- Equivalent volume to the compliance VAS 12L
- Mechanical resistance RMS 5.65N·s/m
- Surround material Butyl Rubber
Dimensions
- Nominal diameter 8″
- 200mm
- Baffle cutout diameter 187mm
- Overall depth 119mm
- Flange thickness 29mm
- Mounting depth 90mm
- Volume occupied by the driver (estimated) 1.5L
- Net weight 3.3kg
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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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