DB Drive G7 12.1
2x1Ω
2x2ΩSubwoofer
12″ / 305 mm
Nominal diameter
29 Hz
Resonance
0.37
Q factor
83 dB
Sensitivity
± 35 mm
Linear excursion
8000 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 82.5
- dB
- Resonance frequency (free air)
- fS
- 29.4
- Hz
- Mechanical quality factor
- QMS
- 2.11
- Electrical quality factor
- QES
- 0.44
- Total quality factor
- QTS
- 0.37
- Maximum linear excursion
- xmax
- 35.0
- mm
- Air volume displaced at xmax
- VD
- 1646
- cm³
- Power handling
- P
- 4000
- W
- Program power
- Pmax
- 8000
- W
- Nominal impedance
- Z
- 2 x 1
- Ω
- DC resistance (in series)
- RE
- 1.4
- Ω
- Inductance (1kHz, in series, estimated)
- LE
- 0.8
- mH
- VC Diameter
- 76
- mm
- Force factor (in series)
- Bl
- 16.03
- N/A
- Motor constant
- Bl/√RE
- 13.5
- N/√W
- Material
- Ferrite
- Effective diameter
- 245
- mm
- Effective area
- SD
- 470
- cm²
- Moving mass
- MMS
- 439.8
- g
- Moving mass (without air load)
- MMD
- 432
- g
- Stiffness
- KMS
- 14.93
- N/mm
- Compliance
- CMS
- 67
- µm/N
- Equivalent volume to the compliance
- VAS
- 21
- L
- Mechanical resistance
- RMS
- 38.56
- N·s/m
- Surround material
- Foam
- Nominal diameter
- 12
- ″
- 305
- mm
- Overall diameter
- 328
- mm
- Baffle cutout diameter
- 283
- mm
- Mounting depth
- 244
- mm
- Volume occupied by the driver (estimated)
- 2.9
- L
- Frame material
- Aluminium