Eminence DELTA PRO-18A
4Ω
8Ω
Subwoofer
| Nominal diameter | 18″ / 457 mm |
| Resonance | 28 Hz |
| Q factor | 0.32 |
| Sensitivity | 95.9 dB |
| Linear excursion | ± 6.7 mm |
| Program power | 1000 W |
Discontinued
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 95.9dB
- Frequency response 37 - 200Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 28Hz
- Mechanical quality factor QMS 10.38
- Electrical quality factor QES 0.33
- Total quality factor QTS 0.32
Large signal parameters
- Maximum linear excursion (one way) xmax 6.7mm
- Maximum excursion before damage xlim 15mm
- Air volume displaced at xmax VD 796cm³
- Power handling P 500W
- Program power Pmax 1000W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.3Ω
- Inductance (1kHz) LE 3.43mH
- VC Diameter 64mm
- Winding material Copper
- Former material Polyimide
Magnet
- Force factor Bl 18.9N/A
- Motor constant Bl/√RE 8.21N/√W
- Air gap height HAG 9.7mm
- Weight 1.899kg
- Material Ferrite
Diaphragm
- Effective diameter 389mm
- Effective area SD 1188cm²
- Moving mass (including air load) MMS 128g
- Moving mass MMD 99.5g
- Material Paper
Suspensions
- Stiffness KMS 4N/mm
- Compliance CMS 250µm/N
- Equivalent volume to the compliance VAS 493L
- Mechanical resistance RMS 2.17N·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 6.01L
- Net weight 7.71kg
- Frame material Die-cast aluminum
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Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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