Ground Zero HYDROGEN GZHW 20-D1
D1
D2Subwoofer
| Nominal diameter | 8″ / 200 mm |
| Resonance | 38.9 Hz |
| Q factor | 0.55 |
| Sensitivity | 80 dB |
| Linear excursion | ± 20 mm |
| Program Power | 1500 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 80dB
Thiele & Small parameters
- Resonance frequency (free air) fS 38.9Hz
- Mechanical quality factor QMS 7.47
- Electrical quality factor QES 0.60
- Total quality factor QTS 0.55
Large signal parameters
- Maximum linear excursion (one way) xmax 20mm
- Air volume displaced at xmax VD 418cm³
- Power handling P 700W
- Program power Pmax 1500W
Voice Coil
- Nominal impedance Z 2 x 1Ω
- DC resistance (in series) RE 2.0Ω
- Inductance (1kHz, in series, estimated) LE 1.47mH
- VC Diameter 63mm
- Winding material Copper
Magnet
- Force factor (in series) Bl 12.8N/A
- Motor constant Bl/√RE 9.03N/√W
Diaphragm
- Effective diameter 163mm
- Effective area SD 209cm²
- Moving mass MMS 192g
- Moving mass (without air load) MMD 189g
- Material Reinforced paper
Suspensions
- Stiffness KMS 11.9N/mm
- Compliance CMS 84µm/N
- Equivalent volume to the compliance VAS 5.2L
- Mechanical resistance RMS 6.27N·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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