L18S801 Excelent Sound woofer 18inch Professional Loud Speakers Unit

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WOOFER Professional Low Frequency Transducer 4-inch, fibreglass inside-outside copper voice coil 1400 Watt continuous program power handling 99.5 dB Sensitivity 38 Hz - 1 kHz Frequency range "Forced air ventilation and front heat sink for minimum power compression" Dual spider design with silicon based dampening control M-roll surround and exponential cone geometry

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INSTALL DIMENSION

GENERAL SPECIFICATIONS
Nominal Diameter	18 / 457	inch / mm
Rated Impedance	8	ohm
Program Power	1400 W	Watt
Power handling capacity	700	Watt
Sensitivity	99.5	dB
Frequency Range	38 - 1000	Hz
Effective Piston Diameter	380 / 14.96	mm / inch
Max Excursion Before Damage (peak to peak)	40 / 1.57	mm / inch
Minimum Impedance	6	ohm
Voice Coil Diameter	4 / 102	inch / mm
Voice Coil Material	Copper
Voice Coil Winding Depth	19 / 0.75	mm / inch
Number of layers	2
Kind of layer	inside/outside
Top Plate Thickness	10 / 0.39	mm / inch
Cone Material	No pressed pulp
Cone Design	Curved
Surround Material	Polycotton
Surround Design	M-roll
Magnets Material	Ceramic


MOUNTING INFORMATION
Overall Diameter	460 / 18.11	mm / inch
Bolt Circle Diameter	438 / 17.24	mm / inch
Bolt Hole Diameter	8 / 0.31	mm / inch
Front Mount Baffle Cut-out	416 / 16.38	mm / inch
Rear Mount Baffle Cut-out	418 / 16.46	mm / inch
Depth	187 / 7.36	mm / inch
Volume occupied by the driver	6.5 / 0.26	liters / ft3