DB Drive G7 12.1
2x1Ω
2x2ΩSubwoofer
| Nominal diameter | 12″ / 305 mm |
| Resonance | 29.4 Hz |
| Q factor | 0.37 |
| Sensitivity | 82.5 dB |
| Linear excursion | ± 35 mm |
| Program power | 8000 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 82.5dB
Thiele & Small parameters
- Resonance frequency (free air) fS 29.4Hz
- Mechanical quality factor QMS 2.11
- Electrical quality factor QES 0.44
- Total quality factor QTS 0.37
Large signal parameters
- Maximum linear excursion (one way) xmax 35mm
- Air volume displaced at xmax VD 1646cm³
- Power handling P 4000W
- Program power Pmax 8000W
Voice Coil
- Nominal impedance Z 2 x 1Ω
- DC resistance (in series) RE 1.4Ω
- Inductance (1kHz, in series, estimated) LE 1.79mH
- VC Diameter 76.2mm
Magnet
- Force factor (in series) Bl 16N/A
- Motor constant Bl/√RE 13.5N/√W
- Material Ferrite
Diaphragm
- Effective diameter 245mm
- Effective area SD 470cm²
- Moving mass (including air load) MMS 440g
- Moving mass MMD 432g
Suspensions
- Stiffness KMS 14.9N/mm
- Compliance CMS 67µm/N
- Equivalent volume to the compliance VAS 21L
- Mechanical resistance RMS 38.6N·s/m
- Surround material Foam
Dimensions
- Nominal diameter 12″
- 305mm
- Overall diameter 328mm
- Baffle cutout diameter 283mm
- Mounting depth 244mm
- Volume occupied by the driver (estimated) 2.9L
- Frame material Aluminium
Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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