DB Drive X-W8D4
2x4Ω
Subwoofer
| Nominal diameter | 8″ / 203 mm |
| Resonance | 42.4 Hz |
| Q factor | 0.42 |
| Sensitivity | 83.1 dB |
| Linear excursion | ± 8.5 mm |
| Program Power | 300 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 83.1dB
Thiele & Small parameters
- Resonance frequency (free air) fS 42.4Hz
- Mechanical quality factor QMS 4.60
- Electrical quality factor QES 0.47
- Total quality factor QTS 0.42
Large signal parameters
- Maximum linear excursion (one way) xmax 8.5mm
- Air volume displaced at xmax VD 166cm³
- Power handling P 150W
- Program power Pmax 300W
- Peak power Ppeak 300W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 6.8Ω
- Inductance (1kHz, in series, estimated) LE 3.1mH
- VC Diameter 38.8mm
Magnet
- Force factor (in series) Bl 18.8N/A
- Motor constant Bl/√RE 7.22N/√W
- Material Ferrite
Diaphragm
- Effective diameter 158mm
- Effective area SD 196cm²
- Moving mass MMS 94g
- Moving mass (without air load) MMD 91.9g
- Material IMPP
Suspensions
- Stiffness KMS 6.67N/mm
- Compliance CMS 150µm/N
- Equivalent volume to the compliance VAS 8.14L
- Mechanical resistance RMS 5.44N·s/m
- Surround material Rubber
- Spider material Poly Cotton
Dimensions
- Nominal diameter 8″
- 203mm
- Volume occupied by the driver (estimated) 0.85L
- Frame material Steel
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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