DB Drive G7 8.2
2x2Ω
2x4ΩSubwoofer
| Nominal diameter | 8″ / 203 mm |
| Resonance | 48.9 Hz |
| Q factor | 0.52 |
| Sensitivity | 79.5 dB |
| Linear excursion | ± 20 mm |
| Program Power | 2500 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 79.5dB
Thiele & Small parameters
- Resonance frequency (free air) fS 48.9Hz
- Mechanical quality factor QMS 2.01
- Electrical quality factor QES 0.70
- Total quality factor QTS 0.52
Large signal parameters
- Maximum linear excursion (one way) xmax 20mm
- Air volume displaced at xmax VD 443cm³
- Power handling P 1250W
- Program power Pmax 2500W
Voice Coil
- Nominal impedance Z 2 x 2Ω
- DC resistance (in series) RE 3.6Ω
- Inductance (1kHz, in series, estimated) LE 2.83mH
- VC Diameter 76.2mm
Magnet
- Force factor (in series) Bl 18.3N/A
- Motor constant Bl/√RE 9.66N/√W
- Material Ferrite
Diaphragm
- Effective diameter 168mm
- Effective area SD 222cm²
- Moving mass MMS 212g
- Moving mass (without air load) MMD 210g
Suspensions
- Stiffness KMS 20N/mm
- Compliance CMS 50µm/N
- Equivalent volume to the compliance VAS 3.48L
- Mechanical resistance RMS 32.5N·s/m
- Surround material Foam
Dimensions
- Nominal diameter 8″
- 203mm
- Overall diameter 233mm
- Baffle cutout diameter 190mm
- Mounting depth 187mm
- Volume occupied by the driver (estimated) 1.2L
- Frame material Aluminium
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
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QSpeakers
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