Woofer 18", 700W AES, 1400W Program |  |
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The L18S800 is the RCF classical high efficiency 18” woofer.
A perfect blend of voice coil length, moving mass weight and suspensions control makes this transducer the preferred solution for many speakers and rental companies. Efficient heat dissipation is ensured by forcing air out through a special vented radiator system which is part of the gap, situated between the basket and the upper plate. Voice coil construction, suspensions and cone materials are upgraded in order to withstand up to 800 Watt RMS power.
Applications
The L18S800 finds its best application in band pass, reflex-horn and horn loaded systems. It is a perfect compact bass reflex solution for live music, when the maximum punch is required. It is one of the fastest transducers in its category. |
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4-inch Inside/outside copper voice coil |
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1400 Watt continuous program power handling |
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99.5 dB Sensitivity |
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38 Hz - 1 kHz Frequency range |
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Forced air ventilation and front heat sink 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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| Woofer 18", 700W AES, 1400W 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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1400
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Watts
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Power handling capacity
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700
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Watts
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Sensitivity 1W, 1m
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99.5
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dB
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Frequency Range
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38-1000
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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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6.3
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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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18.5/0.7
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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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10/0.4
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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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39
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Hz
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DC resistance
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Re
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4.9
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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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0.30
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Total factor
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Qts
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0.29
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BL factor
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BL
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24.5
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T - m
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Effective Moving Mass
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Mms
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148
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gr
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Equivalent Cas air load
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Vas
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206
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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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6.8
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mm
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Voice - coil inductance @ 1KHz
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Le1k
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1.7
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mH
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Half-space efficiency
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Eff
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3.93
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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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13.1/29.1
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Kg/lbs
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Shipping Weight
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13.8/30.7
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Kg/lbs
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| Woofer 18", 700W AES, 1400W Program |
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