Down4Sound DBz18D4
2x2Ω
2x4Ω
Subwoofer
| Nominal diameter | 18″ / 469 mm |
| Resonance | 30.8 Hz |
| Q factor | 0.51 |
| Sensitivity | 90.7 dB |
| Linear excursion | ± 30 mm |
| Program Power | 2600 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 90.7dB
Thiele & Small parameters
- Resonance frequency (free air) fS 30.8Hz
- Mechanical quality factor QMS 2.75
- Electrical quality factor QES 0.62
- Total quality factor QTS 0.51
Large signal parameters
- Maximum linear excursion (one way) xmax 30mm
- Air volume displaced at xmax VD 3627cm³
- Power handling P 1300W
- Program power Pmax 2600W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 6.1Ω
- Inductance (1kHz, in series, estimated) LE 8.2mH
- VC Diameter 69.9mm
Magnet
- Force factor (in series) Bl 31.2N/A
- Motor constant Bl/√RE 12.7N/√W
- Diameter 422mm
Diaphragm
- Effective diameter 392mm
- Effective area SD 1209cm²
- Moving mass MMS 482g
- Moving mass (without air load) MMD 452g
Suspensions
- Stiffness KMS 20.5N/mm
- Compliance CMS 48.8µm/N
- Equivalent volume to the compliance VAS 101L
- Mechanical resistance RMS 0.78N·s/m
Dimensions
- Nominal diameter 18″
- 469mm
- Overall diameter 469mm
- Baffle cutout diameter 427mm
- Mounting depth 253mm
- Volume occupied by the driver 5.95L
- Net weight 15.51kg
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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