Ground Zero HYDROGEN GZHW 20-D2
D1
D2
Subwoofer
| Nominal diameter | 8″ / 200 mm |
| Resonance | 42.4 Hz |
| Q factor | 0.63 |
| Sensitivity | 79.5 dB |
| Linear excursion | ± 20 mm |
| Program Power | 1500 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 79.5dB
Thiele & Small parameters
- Resonance frequency (free air) fS 42.4Hz
- Mechanical quality factor QMS 6.79
- Electrical quality factor QES 0.70
- Total quality factor QTS 0.63
Large signal parameters
- Maximum linear excursion (one way) xmax 20mm
- Air volume displaced at xmax VD 394cm³
- Power handling P 700W
- Program power Pmax 1500W
Voice Coil
- Nominal impedance Z 2 x 2Ω
- DC resistance (in series) RE 4.2Ω
- Inductance (1kHz, in series, estimated) LE 2.92mH
- VC Diameter 63mm
- Winding material Copper
Magnet
- Force factor (in series) Bl 16.9N/A
- Motor constant Bl/√RE 8.27N/√W
Diaphragm
- Effective diameter 158mm
- Effective area SD 197cm²
- Moving mass MMS 179g
- Moving mass (without air load) MMD 177g
- Material Reinforced paper
Suspensions
- Stiffness KMS 12.8N/mm
- Compliance CMS 78µm/N
- Equivalent volume to the compliance VAS 4.3L
- Mechanical resistance RMS 7.01N·s/m
Dimensions
- Nominal diameter 8″
- 200mm
- Overall diameter 210mm
- Baffle cutout diameter 187mm
- Mounting depth 145mm
- Volume occupied by the driver (estimated) 0.93L
- Frame material Aluminium cast
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
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