DB Drive WDX15 7KD4
2x2Ω
2x4Ω
Subwoofer
15″ / 381 mm
Nominal diameter
37 Hz
Resonance
0.51
Q factor
86 dB
Sensitivity
7000 W
Program Power
Discontinued
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 86.3
- dB
- Resonance frequency (free air)
- fS
- 37.5
- Hz
- Mechanical quality factor
- QMS
- 7.01
- Electrical quality factor
- QES
- 0.55
- Total quality factor
- QTS
- 0.51
- Power handling
- P
- 3500
- W
- Program power
- Pmax
- 7000
- W
- Nominal impedance
- Z
- 2 x 4
- Ω
- DC resistance (in series)
- RE
- 6.8
- Ω
- Inductance (1kHz, in series, estimated)
- LE
- 3.83
- mH
- Force factor (in series)
- Bl
- 31.11
- N/A
- Motor constant
- Bl/√RE
- 11.9
- N/√W
- Effective diameter
- 315
- mm
- Effective area
- SD
- 779
- cm²
- Moving mass
- MMS
- 428.2
- g
- Moving mass (without air load)
- MMD
- 412.7
- g
- Stiffness
- KMS
- 20.04
- N/mm
- Compliance
- CMS
- 50
- µm/N
- Equivalent volume to the compliance
- VAS
- 42.9
- L
- Mechanical resistance
- RMS
- 14.38
- N·s/m
- Nominal diameter
- 15
- ″
- 381
- mm
- Volume occupied by the driver (estimated)
- 4.3
- L
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