DB Drive WDX18 7KD4
2x2Ω
2x4Ω
Subwoofer
| Nominal diameter | 18″ / 457 mm |
| Resonance | 32.6 Hz |
| Q factor | 0.73 |
| Sensitivity | 88.1 dB |
| Program power | 7000 W |
Discontinued
.jpg)
.jpg)
Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 88.1dB
Thiele & Small parameters
- Resonance frequency (free air) fS 32.6Hz
- Mechanical quality factor QMS 8.84
- Electrical quality factor QES 0.80
- Total quality factor QTS 0.73
Large signal parameters
- Power handling P 3500W
- Program power Pmax 7000W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 6.8Ω
- Inductance (1kHz, in series, estimated) LE 9.2mH
Magnet
- Force factor (in series) Bl 29N/A
- Motor constant Bl/√RE 11.1N/√W
Diaphragm
- Effective diameter 380mm
- Effective area SD 1135cm²
- Moving mass (including air load) MMS 481g
- Moving mass MMD 454g
Suspensions
- Stiffness KMS 20.2N/mm
- Compliance CMS 49.6µm/N
- Equivalent volume to the compliance VAS 90.6L
- Mechanical resistance RMS 11.2N·s/m
Dimensions
- Nominal diameter 18″
- 457mm
- Volume occupied by the driver (estimated) 6.9L
Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
Amplion.webp.webp)
.webp.webp)
.jpg.webp)