DS18 SELECT SLC8S
2Ω
Subwoofer
| Nominal diameter | 8″ / 214 mm |
| Resonance | 50 Hz |
| Q factor | 0.79 |
| Sensitivity | 83.5 dB |
| Linear excursion | ± 13.5 mm |
| Program Power | 400 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 83.5dB
- Frequency response 35 - 4500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 50Hz
- Mechanical quality factor QMS 6.88
- Electrical quality factor QES 0.89
- Total quality factor QTS 0.79
Large signal parameters
- Maximum linear excursion (one way) xmax 13.5mm
- Air volume displaced at xmax VD 272cm³
- Power handling P 200W
- Program power Pmax 400W
Voice Coil
- Nominal impedance Z 2Ω
- DC resistance RE 1.8Ω
- Inductance (1kHz) LE 0.455mH
- VC Diameter 50.8mm
- Winding material Copper Clad Aluminium
- Former material Aluminum
Magnet
- Force factor Bl 8.57N/A
- Motor constant Bl/√RE 6.39N/√W
- Diameter 140mm
- Weight 1.077kg
- Material Ferrite
Diaphragm
- Effective diameter 160mm
- Effective area SD 201cm²
- Moving mass MMS 116g
- Moving mass (without air load) MMD 113g
- Material Paper
Suspensions
- Stiffness KMS 29.4N/mm
- Compliance CMS 34µm/N
- Equivalent volume to the compliance VAS 7.79L
- Mechanical resistance RMS 5.28N·s/m
- Surround material Foam
Dimensions
- Nominal diameter 8″
- 214mm
- Overall diameter 214mm
- Baffle cutout diameter 183mm
- Overall depth 125mm
- Flange thickness 27mm
- Mounting depth 98mm
- Volume occupied by the driver (estimated) 1.2L
- Frame material Steel
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