DB Drive G7 8.4
2x2Ω
2x4Ω
Subwoofer
8″ / 203 mm
Nominal diameter
50 Hz
Resonance
0.57
Q factor
80 dB
Sensitivity
± 20 mm
Linear excursion
2500 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 80.0
- dB
- Resonance frequency (free air)
- fS
- 50.1
- Hz
- Mechanical quality factor
- QMS
- 2.16
- Electrical quality factor
- QES
- 0.78
- Total quality factor
- QTS
- 0.57
- Maximum linear excursion
- xmax
- 20.0
- mm
- Air volume displaced at xmax
- VD
- 456
- cm³
- Power handling
- P
- 1250
- W
- Program power
- Pmax
- 2500
- W
- Nominal impedance
- Z
- 2 x 4
- Ω
- DC resistance (in series)
- RE
- 6.0
- Ω
- Inductance (1kHz, in series, estimated)
- LE
- 2.06
- mH
- VC Diameter
- 76
- mm
- Force factor (in series)
- Bl
- 21.66
- N/A
- Motor constant
- Bl/√RE
- 8.84
- N/√W
- Material
- Ferrite
- Effective diameter
- 170
- mm
- Effective area
- SD
- 228
- cm²
- Moving mass
- MMS
- 192.5
- g
- Moving mass (without air load)
- MMD
- 189.8
- g
- Stiffness
- KMS
- 19.23
- N/mm
- Compliance
- CMS
- 52
- µm/N
- Equivalent volume to the compliance
- VAS
- 3.83
- L
- Mechanical resistance
- RMS
- 28.1
- N·s/m
- Surround material
- Foam
- Nominal diameter
- 8
- ″
- 203
- mm
- Overall diameter
- 233
- mm
- Baffle cutout diameter
- 190
- mm
- Mounting depth
- 187
- mm
- Volume occupied by the driver (estimated)
- 1.2
- L
- Frame material
- Aluminium