Eminence OMEGA PRO-18A
4Ω
8Ω
Subwoofer
Nominal diameter | 18″ / 457 mm |
Resonance | 25 Hz |
Q factor | 0.31 |
Sensitivity | 95.3 dB |
Linear excursion | ± 4.8 mm |
Program Power | 1600 W |
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- Sensitivity (1W, 1m, infinite baffle) SPL1W 95.3dB
- Frequency response 40 - 800Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 25Hz
- Mechanical quality factor QMS 8.18
- Electrical quality factor QES 0.32
- Total quality factor QTS 0.31
Large signal parameters
- Maximum linear excursion xmax 4.8mm
- Maximum excursion before damage xlim 16mm
- Air volume displaced at xmax VD 556cm³
- Power handling P 800W
- Program power Pmax 1600W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.2Ω
- Inductance (1kHz) LE 1.67mH
- VC Diameter 102mm
- Winding material Copper
- Former material Polyimide
Magnet
- Force factor Bl 18.8N/A
- Motor constant Bl/√RE 8.24N/√W
- Air gap height HAG 9.5mm
- Weight 3.09kg
- Material Ferrite
Diaphragm
- Effective diameter 384mm
- Effective area SD 1159cm²
- Moving mass MMS 137g
- Moving mass (without air load) MMD 109g
- Material Paper
Suspensions
- Stiffness KMS 3.45N/mm
- Compliance CMS 290µm/N
- Equivalent volume to the compliance VAS 549L
- Mechanical resistance RMS 2.63N·s/m
- Surround material Cloth
Dimensions
- Nominal diameter 18″
- 457mm
- Overall diameter 457mm
- Baffle cutout diameter 421mm
- Overall depth 207mm
- Volume occupied by the driver 6.62L
- Net weight 11.43kg
- Frame material Die-cast aluminum
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