Skar Audio SDR-8 D4
2x2Ω
2x4Ω
Subwoofer
| Nominal diameter | 8″ / 214 mm |
| Resonance | 39 Hz |
| Q factor | 0.61 |
| Sensitivity | 83.1 dB |
| Linear excursion | ± 8.8 mm |
| Program power | 700 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 83.1dB
Thiele & Small parameters
- Resonance frequency (free air) fS 39Hz
- Mechanical quality factor QMS 5.10
- Electrical quality factor QES 0.68
- Total quality factor QTS 0.61
Large signal parameters
- Maximum linear excursion (one way) xmax 8.8mm
- Air volume displaced at xmax VD 177cm³
- Power handling P 350W
- Program power Pmax 700W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 8.4Ω
- Inductance (1kHz, in series, estimated) LE 3.23mH
- VC Diameter 50.8mm
- Winding material Copper
Magnet
- Force factor (in series) Bl 14.7N/A
- Motor constant Bl/√RE 5.07N/√W
- Diameter 134mm
Diaphragm
- Effective diameter 160mm
- Effective area SD 201cm²
- Moving mass (including air load) MMS 72.8g
- Moving mass MMD 70.6g
- Material Pressed Paper
Suspensions
- Stiffness KMS 8.2N/mm
- Compliance CMS 122µm/N
- Equivalent volume to the compliance VAS 6.98L
- Mechanical resistance RMS 3.5N·s/m
- Surround material Foam
Dimensions
- Nominal diameter 8″
- 214mm
- Overall diameter 214mm
- Baffle cutout diameter 183mm
- Overall depth 137mm
- Flange thickness 18mm
- Mounting depth 119mm
- Volume occupied by the driver (estimated) 1.4L
Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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