Image Dynamics IDQS8D4
2x2Ω
2x4Ω
Shallow Subwoofer
| Nominal diameter | 8″ / 203 mm |
| Resonance | 53 Hz |
| Q factor | 1.22 |
| Sensitivity | 82.4 dB |
| Linear excursion | ± 7 mm |
| Program power | 250 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 82.4dB
- Frequency response 50 - 500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 53Hz
- Mechanical quality factor QMS 4.90
- Electrical quality factor QES 1.63
- Total quality factor QTS 1.22
Large signal parameters
- Maximum linear excursion (one way) xmax 7mm
- Air volume displaced at xmax VD 150cm³
- Power handling P 125W
- Program power Pmax 250W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 6.9Ω
- Inductance (1kHz, in series) LE 1.28mH
- VC Diameter 38.1mm
- Winding height HVC 22mm
- Winding material Copper
- Former material Kappton
Magnet
- Force factor (in series) Bl 12N/A
- Motor constant Bl/√RE 4.56N/√W
- Air gap height HAG 8mm
- Weight 0.615kg
Diaphragm
- Effective diameter 165mm
- Effective area SD 214cm²
- Moving mass (including air load) MMS 95.4g
- Moving mass MMD 93.1g
- Material Poly/Mica
Suspensions
- Stiffness KMS 12.1N/mm
- Compliance CMS 82.9µm/N
- Equivalent volume to the compliance VAS 5.38L
- Mechanical resistance RMS 6.49N·s/m
- Surround material Santoprene
- Spider material Nomex
Dimensions
- Nominal diameter 8″
- 203mm
- Baffle cutout diameter 182mm
- Mounting depth 79mm
- Volume occupied by the driver 0.85L
- Net weight 0.615kg
Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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