LF18N408 Neodymium Woofer Speaker Unit 18 Inch Aluminium Basket Low Frequency Transducer

Category：

WOOFER Professional Low Frequency Transducer 4.0 - inch Inside/Outside copper voice coil 3000 Watt continuous program power handling 97 dB Sensitivity 25 Hz - 1 kHz Frequency range Hypervented magnetic structure for minimum power compression Triple roll surround and exponential cone geometry Double aluminum demodulation rings

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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	dB
Frequency Range	25 - 1000	Hz
Effective Piston Diameter	395 / 15.55	mm / inch
Max Excursion Before Damage (peak to peak)	58 / 2.28	mm / inch
Minimum Impedance	6	ohm
Voice Coil Diameter	4 / 102	inch / mm
Voice Coil Material	Copper
Voice Coil Winding Depth	38 / 1.41	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	Cone Design Curved
Surround Material	Surround Material Polycotton
Surround Design	Triple roll
Magnets Material	Neodymium
Demodulating rings	Double


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	Depth 190 / 7.48	mm / inch
Volume occupied by the driver	5.5 / 0.22	liters / ft