Down4Sound DBz8D4
2x2Ω
2x4Ω
Subwoofer
| Nominal diameter | 8″ / 221 mm |
| Resonance | 46.2 Hz |
| Q factor | 0.47 |
| Sensitivity | 80.8 dB |
| Linear excursion | ± 21 mm |
| Program Power | 1400 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 80.8dB
Thiele & Small parameters
- Resonance frequency (free air) fS 46.2Hz
- Mechanical quality factor QMS 1.90
- Electrical quality factor QES 0.62
- Total quality factor QTS 0.47
Large signal parameters
- Maximum linear excursion (one way) xmax 21mm
- Air volume displaced at xmax VD 441cm³
- Power handling P 700W
- Program power Pmax 1400W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 6.4Ω
- Inductance (1kHz, in series, estimated) LE 4.86mH
- VC Diameter 63.5mm
Magnet
- Force factor (in series) Bl 24.8N/A
- Motor constant Bl/√RE 9.8N/√W
- Diameter 170mm
Diaphragm
- Effective diameter 164mm
- Effective area SD 210cm²
- Moving mass MMS 202g
- Moving mass (without air load) MMD 200g
Suspensions
- Stiffness KMS 17.4N/mm
- Compliance CMS 57.3µm/N
- Equivalent volume to the compliance VAS 3.29L
- Mechanical resistance RMS 0.757N·s/m
Dimensions
- Nominal diameter 8″
- 221mm
- Overall diameter 221mm
- Baffle cutout diameter 186mm
- Mounting depth 168mm
- Volume occupied by the driver 1.98L
- Net weight 10.7kg
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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