Down4Sound DBz18D2
2x2Ω
2x4ΩSubwoofer
| Nominal diameter | 18″ / 469 mm |
| Resonance | 31.1 Hz |
| Q factor | 0.47 |
| Sensitivity | 89.7 dB |
| Linear excursion | ± 30 mm |
| Program Power | 2600 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 89.7dB
Thiele & Small parameters
- Resonance frequency (free air) fS 31.1Hz
- Mechanical quality factor QMS 2.51
- Electrical quality factor QES 0.57
- Total quality factor QTS 0.47
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 2Ω
- DC resistance (in series) RE 4.0Ω
- Inductance (1kHz, in series, estimated) LE 6.22mH
- VC Diameter 69.9mm
Magnet
- Force factor (in series) Bl 28.5N/A
- Motor constant Bl/√RE 14.3N/√W
- Diameter 190mm
Diaphragm
- Effective diameter 392mm
- Effective area SD 1209cm²
- Moving mass MMS 602g
- Moving mass (without air load) MMD 572g
Suspensions
- Stiffness KMS 20.5N/mm
- Compliance CMS 48.8µm/N
- Equivalent volume to the compliance VAS 89.8L
- Mechanical resistance RMS 0.768N·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 15.5kg
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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