DS18 ZR8.4D
2x2Ω
2x4Ω
Subwoofer
| Nominal diameter | 8″ / 214 mm |
| Resonance | 45 Hz |
| Q factor | 0.64 |
| Sensitivity | 82.3 dB |
| Program Power | 900 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 82.3dB
- Frequency response 33 - 200Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 45Hz
- Mechanical quality factor QMS 4.70
- Electrical quality factor QES 0.75
- Total quality factor QTS 0.64
Large signal parameters
- Power handling P 450W
- Program power Pmax 900W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 9.6Ω
- Inductance (1kHz, in series) LE 5.51mH
- VC Diameter 50.8mm
- Winding material Copper
- Former material Aluminum
Magnet
- Force factor (in series) Bl 19N/A
- Motor constant Bl/√RE 6.12N/√W
- Diameter 145mm
- Material Ferrite
Diaphragm
- Effective diameter 158mm
- Effective area SD 196cm²
- Moving mass MMS 97g
- Moving mass (without air load) MMD 94.9g
- Material Non Pressed Paper
Suspensions
- Stiffness KMS 10.2N/mm
- Compliance CMS 97.6µm/N
- Equivalent volume to the compliance VAS 5.33L
- Mechanical resistance RMS 5.84N·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 (estimated) 1.3L
- Frame material Steel
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Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
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