LF18X401 Professional 18 inch Pa Speaker LF Woofer Low Frequency Transducer

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WOOFER Professional Low Frequency Transducer 4.0 - inch, fibreglass inside-outside copper voice coil 3000 Watt continuous program power handling 96.5 dB Sensitivity 30 Hz - 1.5 kHz Frequency range 26.5 T/m BL 50 mm peak-to-peak excursion "Dual-forced hyper-venting and 15mm top plate for minimum power compression " Dual spider design with silicon based dampening control Triple-roll surround and corrugated straight cone geometry

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INSTALL DIMENSION

GENERAL SPECIFICATIONS
Nominal Diameter	18 / 457	inch / mm
Rated Impedance	8	ohm
Program Power	3000	Watt
Power handling capacity	1500	Watt
Sensitivity	97.5	dB
Frequency Range	25 - 1000	Hz
Effective Piston Diameter	395 / 15.55	mm / inch
Max Excursion Before Damage (peak to peak)	50 / 1.97	mm / inch
Minimum Impedance	6.5	ohm
Voice Coil Diameter	4 / 102	inch / mm
Voice Coil Material	Copper
Voice Coil Winding Depth	30 / 1.18	mm / inch
Number of layers	2
Kind of layer	inside/outside
Top Plate Thickness	15 / 0.59	mm / inch
Cone Material	No pressed pulp
Cone Design	Straight
Surround Material	Polycotton
Surround Design	Triple roll
Magnets Material	Ceramic

MOUNTING INFORMATION
Overall Diameter	465 / 18.31	mm / inch
Bolt Circle Diameter	442-447 / 17.4-17.6	mm / inch
Bolt Hole Diameter	6.5 / 0.25	mm / inch
Front Mount Baffle Cut-out	424 / 16.69	mm / inch
Rear Mount Baffle Cut-out	425 / 16.73	mm / inch
Depth	188 / 7.4	mm / inch
Volume occupied by the driver	6.5 / 0.26	liters / ft3