DB Drive G7 8.4
2x2Ω
2x4Ω
Subwoofer
| Nominal diameter | 8″ / 203 mm |
| Resonance | 50.1 Hz |
| Q factor | 0.57 |
| Sensitivity | 80 dB |
| Linear excursion | ± 20 mm |
| Program Power | 2500 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 80dB
Thiele & Small parameters
- Resonance frequency (free air) fS 50.1Hz
- Mechanical quality factor QMS 2.16
- Electrical quality factor QES 0.78
- Total quality factor QTS 0.57
Large signal parameters
- Maximum linear excursion xmax 20mm
- Air volume displaced at xmax VD 456cm³
- Power handling P 1250W
- Program power Pmax 2500W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 6.0Ω
- Inductance (1kHz, in series, estimated) LE 4.41mH
- VC Diameter 76.2mm
Magnet
- Force factor (in series) Bl 21.7N/A
- Motor constant Bl/√RE 8.84N/√W
- Material Ferrite
Diaphragm
- Effective diameter 170mm
- Effective area SD 228cm²
- Moving mass MMS 193g
- Moving mass (without air load) MMD 190g
Suspensions
- Stiffness KMS 19.2N/mm
- Compliance CMS 52µm/N
- Equivalent volume to the compliance VAS 3.83L
- Mechanical resistance RMS 28.1N·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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