Eminence DEFINIMAX 4018LF 18" 1200 Watts
Recommended for professional audio and bass as a high power, low distortion subwoofer in single or multi-driver designs.
SPECIFICATION | |
Nominal Basket Diameter | 18", 457 mm |
Nominal Impedance* | 8 Ω |
Power Rating* | |
Program Power | 2400 W |
Watts | 1200 W |
Resonance | 30 Hz |
Usable Frequency Range | 31 Hz - 0.2 kHz |
Sensitivity* | 94.9 dB |
Magnet Weight | 109 oz. |
Gap Height | 0.375", 9.5 mm |
Voice Coil Diameter | 4", 102 mm |
THIELE & SMALL PARAMETERS | |
Resonant Frequency (fs) | 30 Hz |
DC Resistance (Re) | 6.1 Ω |
Coil Inductance (Le) | 4.54m H |
Mechanical Q (Qms) | 11.95 |
Electromagnetic Q (Qes) | 0.35 |
Total Q (Qts) | 0.34 |
Compliance Equivalent Volume (Vas) | 254.71 liters / 9 cu.ft. |
Peak Diaphragm Displacement Volume (Vd) | 1018.1 cc |
Mechanical Compliance of Suspension (Cms) | 0.13 mm/N |
BL Product (BL) | 26.75 T-M |
Diaphragm Mass Inc. Airload (MMs) | 217 grams |
Efficiency Bandwidth Product (EBP) | 86 |
Maximum Linear Excursion (Xmax) | 8.57 mm |
Surface Area of Cone (Sd) | 1188 cm2 |
Maximum Mechanical Limit (Xlim) | 15.9 mm |
MOUNTING INFORMATION | |
Recommended Enclosure Volume | |
Sealed | N/a |
Vented | 99.11-226.54 liters / 3.5-8 cu.ft. |
Driver Volume Displaced | 0.234 cu.ft. / 6.62 liters |
Overall Diameter | 18", 457.2 mm |
Baffle Hole Diameter | 16.56", 420.6 mm |
Front Sealing Gasket | Yes |
Rear Sealing Gasket | Yes |
Mounting Holes Diameter | 0.28", 7.1mm |
Mounting Holes B.C.D. | 17.25", 438.2mm |
Depth | 8.13", 206.5 mm |
Net Weight | 24 lbs, 10.89 kg |
Shipping Weight | 26 lbs, 11.79 kgs |
MATERIALS OF CONSTRUCTION | |
Coil Construction | Copper voice coil |
Coil Former | Polyimide former |
Magnet Composition | Ferrite magnet |
Core Details | Undercut with aluminium shorting ring and Core-Periphery Ventilation |
Basket Materials | Die-cast aluminium basket |
Cone Composition | Water resistant paper cone |
Cone Edge Composition | Cloth cone edge |
Dust Cap Composition | Water resistant treated paper dust cap |
Do you have any question?
info@thespeakerfactory.com.au
+61 457 205 573
Mon - Fri: 9:00am - 4:00pm
- +61 457 205 573
- info@thespeakerfactory.com.au