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| [Eminence Definimax 4] |
| Eminence Definimax 4018 LFA |
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| DEFINIMAX™ 4018LF Professional Series
Recommended for professional audio and bass as a low distortion sub-woofer in single or multi-driver designs.
SPECIFICATION
* Nominal Basket Diameter 18", 457.2 mm
* Nominal Impedance 8 ohms
* Power Rating Watts 800 W / Music Program 1600 W
* Resonance 32Hz Usable Frequency Range 36 Hz -200 Hz
* Sensitivity 95
* Magnet Weight 109
* Gap Height 0.375",
* Voice Coil Diameter 4", 101.6 mm
THIELE & Small Parameters
* Resonant Frequency (fs) 32 Hz
* DC Resistance (Re) 6.19
* Coil Inductance (Le) 4.78 mH
* Mechanical Q (Qms) 10.38
* Electromagnetic Q (Qes) 0.36
* Total Q (Qts) 0.35
* Compliance Equivalent Volume (Vas) 237.9 liters / 8.4 cu. ft.
* Peak Diaphragm Displacement Volume 939 cc
* Mechanical Compliance of Suspension (Cms) 0.12 mm/N
* BL Product (BL) 27.0
* Diaphragm Mass inc. Airload (Mms) 211 grams
* Efficiency Bandwidth Product (EBP) 89
* Maximum Linear Excursion (Xmax) 7.9 mm
* Surface Area of Cone (Sd) 1188.0 cm²
* Maximum Mechanical Limit (Xlim) 15.9 mm
MOUNTING Information
* Recommended Enclosure Volume
Sealed N/A
Vented 125-210
* Overall Diameter 18",
* Baffle Hole Diameter 16.57",
* Front Sealing Gasket fitted as standard
* Rear Sealing Gasket fitted as standard
* Mounting Holes Diameter 0.28", 7 mm
* Mounting Holes B.C.D. 17.25", 438.2 mm
* Depth 8.13", 206.4 mm
MATERIALS of Construction
* Copper voice coil
* Polyimide former
* Ferrite magnet
* Undercut with copper shorting ring and Core Periphery Ventilation
* Die-cast aluminum basket
* Acrylic Wetlook Paper Cone
* Cloth cone edge
* Acrylic wetlook paper dust cap |
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Drivers
