Image Dynamics IDQ8D4 V4
2x2Ω
2x4Ω
Subwoofer
| Nominal diameter | 8″ / 212 mm |
| Resonance | 51 Hz |
| Q factor | 0.84 |
| Sensitivity | 83.2 dB |
| Linear excursion | ± 14.5 mm |
| Program power | 250 W |
.webp)
Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 83.2dB
- Frequency response 50 - 500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 51Hz
- Mechanical quality factor QMS 6.17
- Electrical quality factor QES 0.97
- Total quality factor QTS 0.84
Large signal parameters
- Maximum linear excursion (one way) xmax 14.5mm
- Air volume displaced at xmax VD 310cm³
- Power handling P 125W
- Program power Pmax 250W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 5.4Ω
- Inductance (1kHz, in series) LE 2.4mH
- VC Diameter 50.8mm
- Winding height HVC 38.3mm
- Winding material Aluminum
- Former material BASV
Magnet
- Force factor (in series) Bl 13.1N/A
- Motor constant Bl/√RE 5.63N/√W
- Weight 5.103kg
Diaphragm
- Effective diameter 165mm
- Effective area SD 214cm²
- Moving mass (including air load) MMS 90.5g
- Moving mass MMD 88.2g
- Material Poly Mica
Suspensions
- Stiffness KMS 10.4N/mm
- Compliance CMS 96µm/N
- Equivalent volume to the compliance VAS 6.19L
- Mechanical resistance RMS 4.7N·s/m
- Surround material Santoprene
- Spider material Nomex
Dimensions
- Nominal diameter 8″
- 212mm
- Overall diameter 212mm
- Baffle cutout diameter 184mm
- Overall depth 126mm
- Flange thickness 1mm
- Mounting depth 125mm
- Volume occupied by the driver 1.42L
- Net weight 5.67kg
Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
Amplion.jpg.webp)
.webp.webp)
.webp.webp)