DS18 ZR8.2D
2x2Ω
2x4ΩSubwoofer
| Nominal diameter | 8″ / 214 mm |
| Resonance | 40 Hz |
| Q factor | 0.57 |
| Sensitivity | 81.8 dB |
| Program Power | 900 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 81.8dB
- Frequency response 33 - 200Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 40Hz
- Mechanical quality factor QMS 4.38
- Electrical quality factor QES 0.66
- Total quality factor QTS 0.57
Large signal parameters
- Power handling P 450W
- Program power Pmax 900W
Voice Coil
- Nominal impedance Z 2 x 2Ω
- DC resistance (in series) RE 4.0Ω
- Inductance (1kHz, in series) LE 3.74mH
- VC Diameter 50.8mm
- Winding material Copper
- Former material Aluminum
Magnet
- Force factor (in series) Bl 13.3N/A
- Motor constant Bl/√RE 6.67N/√W
- Diameter 145mm
- Weight 1.559kg
- Material Ferrite
Diaphragm
- Effective diameter 158mm
- Effective area SD 196cm²
- Moving mass MMS 113g
- Moving mass (without air load) MMD 111g
- Material Non Pressed Paper
Suspensions
- Stiffness KMS 9.51N/mm
- Compliance CMS 105µm/N
- Equivalent volume to the compliance VAS 5.74L
- Mechanical resistance RMS 6.47N·s/m
- Surround material Foam
Dimensions
- Nominal diameter 8″
- 214mm
- Overall diameter 214mm
- Baffle cutout diameter 184mm
- Overall depth 134mm
- Flange thickness 23mm
- Mounting depth 111mm
- Volume occupied by the driver 0.85L
- Frame material Steel
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
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