LF18X400 Big Woofer Speaker 18" Professional Pro Audio Woofer High Quality

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WOOFER Professional Low Frequency Transducer 4-inch, fibreglass inside-outside copper voice coil 2000 Watt continuous program power handling 97.5 dB Sensitivity 25 Hz - 1 kHz Frequency range Progressive, spaced, aluminum demodulation rings " Forced air ventilation and 14 mm 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	2000	Watt
Power handling capacity	1000	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	ohm
Voice Coil Diameter	4 / 102	inch / mm
Voice Coil Material	Copper
Voice Coil Winding Depth	25 / 0.98	mm / inch
Number of layers	2
Kind of layer	inside/outside
Top Plate Thickness	14 / 0.55	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	424 / 16.69	mm / inch
Depth	210 / 8.3	mm / inch
Volume occupied by the driver	6 7 / 0.28	liters / ft3