Image Dynamics IDQS12D4
2x2Ω
2x4Ω
Shallow Subwoofer
| Nominal diameter | 12″ / 305 mm |
| Resonance | 45 Hz |
| Q factor | 0.86 |
| Sensitivity | 86.4 dB |
| Linear excursion | ± 7.5 mm |
| Program power | 450 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 86.4dB
- Frequency response 45 - 500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 45Hz
- Mechanical quality factor QMS 7.17
- Electrical quality factor QES 0.97
- Total quality factor QTS 0.86
Large signal parameters
- Maximum linear excursion (one way) xmax 7.5mm
- Air volume displaced at xmax VD 392cm³
- Power handling P 250W
- Program power Pmax 450W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 7.7Ω
- Inductance (1kHz, in series) LE 1.36mH
- VC Diameter 50.8mm
- Winding height HVC 25mm
- Winding material Copper
- Former material Kappton
Magnet
- Force factor (in series) Bl 21N/A
- Motor constant Bl/√RE 7.59N/√W
- Air gap height HAG 10mm
Diaphragm
- Effective diameter 258mm
- Effective area SD 523cm²
- Moving mass (including air load) MMS 192g
- Moving mass MMD 184g
- Material Poly/Mica
Suspensions
- Stiffness KMS 16.8N/mm
- Compliance CMS 59.5µm/N
- Equivalent volume to the compliance VAS 22.4L
- Mechanical resistance RMS 7.59N·s/m
- Surround material Santoprene
- Spider material Nomex
Dimensions
- Nominal diameter 12″
- 305mm
- Baffle cutout diameter 276mm
- Mounting depth 89mm
- Volume occupied by the driver 0.09L
- Net weight 1.756kg
Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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