18LW1400
	18" EXTENDED L.F. WOOFER

• EIGHTEEN SOUND 18LW1400 IS A POWERFUL 18" EXTENDED LOW FREQUENCY WOOFER
• HANDLES A LARGE 1,000 WATTS AES & 2,000 WATTS PROGRAM
• SPECIALLY REINFORCED CONE CAN WITHSTAND PRESSURE IN A FOLDED HORN CABINET & IS WEATHER PROTECTED FOR USE OUTDOORS
• DOUBLE SILICON SPIDER(DSS) FOR INCREASED EXCURSION
• VERY LOW DISTORTION & IMPROVED COOLING W/ 8 AIR VENTS IN BACK PLATE
• FOR USE IN PROFESSIONAL HIGH POWER FOLDED HORN OR FRONT LOADED SUBWOOFER SYSTEMS FOR CONCERT, ARENA, THEATER, ETC.
• USED IN THE EAW SB1000 & KF850 SUBWOOFER CABINETS

WOOFER MODEL	18LW1400
Specifications
Diameter	18" / 460mm
Impedance	8 ohms
Minimum Impedance	7 ohms @ 4.0 kHz
D.C. Resistance	5.3 ohms
AES Power Rating	1,000 Watts
Program Power	2,000 Watts
Sensitivity (1W/1m)	98dB SPL
Frequency Response	28Hz - 2.5kHz
Recommended Crossover	500Hz
Voice Coil Diameter	3.95" / 100mm
BL Factor	24.7 TM
Recommended Enclosure Volume	4.59-12.36 cu. ft / 130-350Liters
Magnet	Ferrite
Mounting Information
Overall Diameter	18.2" / 462mm
Bolt Circle Diameter	17.24-17.32" / 438-440mm
Baffle Cutout Diameter	16.38" / 416
Overall Depth	8.42" / 213.9mm
Flange Thickness	1.02" / 26mm
Net Weight	29.36 lbs. / 13.3 kg.
Shipping Weight	32.9 lbs. / 14.9 kg.
Thiele-Small Parameters
Resonant Frequency (fs)	31 Hz
Impedance (Re)	5 ohms
Coil Inductance (Le)	2.3mH
Mechanical Q (Qms)	7.2
Electrical Factor(Qes)	.31
Total Q (Qts)	.29
Comp. Equivelant Vol. (Vas)	10.49 ft3 / 297 Liters
Voice Coil Overhang (Xmax)	9.0mm
Surface Area of Cone (Sd)m2	0.1225m2
Frequency response in 180 Liter enclosure tuned to 35Hz

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