Image Dynamics IDQS12D2
2x2Ω
2x4ΩShallow Subwoofer
| Nominal diameter | 12″ / 305 mm |
| Resonance | 45 Hz |
| Q factor | 0.81 |
| Sensitivity | 86.8 dB |
| Linear excursion | ± 7.5 mm |
| Program power | 450 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 86.8dB
- Frequency response 45 - 500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 45Hz
- Mechanical quality factor QMS 7.11
- Electrical quality factor QES 0.91
- Total quality factor QTS 0.81
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 2Ω
- DC resistance (in series) RE 4.2Ω
- Inductance (1kHz, in series) LE 1.72mH
- VC Diameter 50.8mm
- Winding height HVC 25mm
- Winding material Copper
- Former material Kappton
Magnet
- Force factor (in series) Bl 15.7N/A
- Motor constant Bl/√RE 7.69N/√W
- Air gap height HAG 10mm
Diaphragm
- Effective diameter 258mm
- Effective area SD 523cm²
- Moving mass (including air load) MMS 190g
- Moving mass MMD 181g
- Material Poly/Mica
Suspensions
- Stiffness KMS 15.5N/mm
- Compliance CMS 64.7µm/N
- Equivalent volume to the compliance VAS 25.1L
- Mechanical resistance RMS 7.54N·s/m
- Surround material Parabolic 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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