LF18X451

Incredibly linear frequency response characteristics, the highest power handling of any comparable 18-inch transducer, the lowest power compression.

The LF18X451 features a fibre loaded cone assembly along with a high excursion triple roll, constant geometry surround: this combination provides remarkable strength and a peak to peak maximum excursion of 54 mm. The new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling. A double silicon spider system ensures excellent control during large excursions. A fully optimised T-pole design generate the minimum amount of flux modulation.
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pdfDatasheet (паспорт драйвера)

FEATURES
  • 4,5 - inch fiberglas Inside/Outside copper voice coil
  • 3600 Watt continuous program power handling
  • 97 dB Sensitivity
  • 30 Hz - 1 kHz Frequency range
  • Dual Forced Hyperventing System
  • Dual spider designed with silicon based damping control
  • BL of 30.5 Txm to provide a faster and accurate low frequency
GENERAL SPECIFICATIONS
  • Nominal Diameter:460/18 mm/inch
  • Rated Impedance:8 Ω
  • Program Power:3600 W AES
  • Power handling capacity:1800 W AES
  • Sensitivity:97 dB
  • Frequency Range:30 Hz ÷ 1000 Hz
  • Effective Piston Diameter:395 / 15.6 mm/inch
  • Max Excursion Before Damage (peak to peak):54/2.12 mm/inch
  • Minimum Impedance:6.8 Ω
  • Voice Coil Diameter:115 / 4.5 mm/inch
  • Voice Coil Material:Copper
  • Voice Coil Winding Depth:34 / 1.33 mm/inch
  • Number of layers:2
  • Kind of layer:inside / outside
  • Top Plate Thickness:15 / 0.6 mm/inch
  • Cone Material:No presed pulp
  • Cone Design:Straight
  • Surround Material:Polycotton
  • Surround Design:Triple roll
THIELE/SMALL PARAMETERS
  • Resonance frequency:30 Hz
  • DC resistance:5.4Ω
  • Mechanical factor:6.7
  • Electrical factor:0.29
  • Total factor:0.28
  • BL Factor:30.5 T · m
  • Effective Moving Mass:260 g
  • Equivalent Cas air load:220 liters
  • Effettive piston area:0.122 m²
  • Max. linear excursion (mathematical):13.5 mm
  • Voice - coil inductance @ 1kHz:2,9 mH
  • Half-space efficiency:1.90%
MOUNTING INFORMATION
  • Overall Diameter:465 / 18.3 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:424/16.7 mm/inch
  • Rear Mount Baffle Cut-out:424 / 16.7 mm/inch
  • Depth:194 / 7.63 mm/inch
  • Volume occupied by the driver:6.5 / 0.23 liters/ft³
  • Net Weight:15.2 / 33.4 kg/lbs

 

 

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