Woofer 18", 1000W AES, 2000W Program |  |
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In production for over 10 years, the L18P300 is an industry standard in 18" (460 mm) high performance woofers.
The actual version of L18P300 is manufactured with a
newly designed aluminum basket that provides an improved ventilation
under the top plate. This renewed version is perfectly compatible with
the older one both in size and performance . The magnetic structure use
a 15mm thickness plates and a specially designed M-roll suspensions
that, combined with a double silicon spider, ensure an excellent linear
piston control and an undistorted low frequencies reproduction at very
high power. Voice coil is 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 settings.
Applications
The
L18P300 finds its application in bass reflex and band pass system.. Its
capacity to reproduce extremely low frequencies along with
extraordinary sound definition make it a no compromise woofer in its
category, ideal for live and recorded music.
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4-inch Inside/outside copper voice coil |
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2000 Watt continuous program power handling |
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97 dB Sensitivity |
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35 Hz - 1 kHz Frequency range |
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Forced air ventilation and 15 mm 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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Push buttons easier to use |
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Larger fixing holes |
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Smaller overall diameter for easier assembling |
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Lighter weight |
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Improved ventilation under the top plate |
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| Woofer 18", 1000W AES, 2000W Program |
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Nominal Diameter
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460/18
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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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380/15
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mm/inch
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Maximum Excursion Before Damage
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40/1.6
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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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100/4
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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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23/0.9
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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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15/0.6
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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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0.113
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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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470/18.5
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mm/inch
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Bolt Circle Diameter
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438
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mm
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Bolt Hole Diameter
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8/0.3
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mm/inch
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Front Mount Baffle Cut-out
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416/16.4
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mm/inch
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Rear Mount Baffle Cut-out
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418/16.5
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mm/inch
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Depth
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209/8.3
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mm/inch
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Volume occupied by the driver
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6.5
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liters/ft3
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Net Weight
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14/31.1
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Kg/lbs
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Shipping Weight
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14.8/32.9
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Kg/lbs
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| Woofer 18", 1000W AES, 2000W Program |
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