Woofer 18", 1000W AES, 2000W Program |  |
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The L18P300ND is
derived from L18P300 but with a neo magnetic design and manufactured
with a newly designed Neodymium basket that provides improved
ventilation under the top plate.
This new model is
perfectly compatible with the ferrite version both in size and
performance but with a much reduced weight. The neo magnetic assembly
use a 15mm thickness plates that ensure a high flux density in the gap,
low power compression and excellent heat dissipation. A specially
designed M-roll suspensions combined with a double silicon spider
ensure an excellent linear piston control and an undistorted low
frequencies reproduction at very high power. The voice coil are
constructed using a fibreglass former treated with high temperature
resin adhesives while the coil is wound in inside/outside typology to
provide a very high thermal stability and durability at high power
levels.
Applications
The
L18P300ND finds its application in bass reflex and band pass system.
Its capacity to reproduce extremely low frequencies along with
extraordinary definition make it a no compromise woofer in its
category, ideal for live and recorded music. |
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4-inch , fibreglass inside-outside copper voice coil |
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2000W continuous program power handling |
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97dB Sensitivity |
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35Hz –1KHz Frequency range |
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Forced air ventilation and 15mm top plate for minimum power compression |
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Dual spider design with silicon based dampening control |
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M-roll surround and exponential cone geometry |
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Neo magnetic assembly |
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The net weight of L18P300ND result half in comparison to the ferrite version. |
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Push buttons easier to use |
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Larger fixing holes |
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Improved ventilation under the top plate |
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Smaller overall diameter for easier assembling |
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| Woofer 18", 1000W AES, 2000W Program |
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Nominal Diameter
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460
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mm/inch
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Rated Impedance
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8
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Ohm
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Program Power
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2000
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Watts
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Power handling capacity
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1000
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Watts
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Sensitivity 1W, 1m
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97
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dB
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Frequency Range
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35 - 1000
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Hz
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Effective Piston Diameter
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380
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mm/inch
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Maximum Excursion Before Damage
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40
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mm/inch
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Minimum Impedance
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6,0
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Ohm
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Voice Coil Diameter
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100
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mm/inch
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Voice Coil Material
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Copper
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Voice Coil Winding Depth
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23
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mm/inch
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Number of layers
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2
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Kind of layer
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inside/outside
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Thickness Top Plate Depth
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15
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mm/inch
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Cone Material
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No pressed pulp
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Cone Design
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Curved
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Surround Material
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Polycotton
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Surround Design
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M - roll
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| THIELE - SMALL PARAMETERS |
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Resonance frequency
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Fs
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33
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Hz
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DC resistance
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Re
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5,0
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Ohm
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Mechanical factor
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Qms
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8,3
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Electrical factor
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Qes
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0,34
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Total factor
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Qts
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0,33
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BL factor
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BL
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23,5
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T - m
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Effective Moving Mass
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Mms
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180
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gr
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Equivalent Cas air load
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Vas
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226
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liters
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Effective piston area
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Sd
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0,1134
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m2
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Max. linear excursion
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Xmax
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7,8
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mm
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Voice - coil inductance @ 1KHz
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Le1k
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1,9
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mH
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Half-space efficiency
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Eff
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2,30
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%
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Overall Diameter
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460
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mm/inch
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Bolt Circle Diameter
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436-442
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mm
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Bolt Hole Diameter
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8
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mm/inch
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Front Mount Baffle Cut-out
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416
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mm/inch
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Rear Mount Baffle Cut-out
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418
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mm/inch
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Depth
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198
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mm/inch
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Volume occupied by the driver
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liters/ft3
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Net Weight
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6,5
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Kg/lbs
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Shipping Weight
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7,3
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Kg/lbs
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| Woofer 18", 1000W AES, 2000W Program |
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