RCF LF18G401

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Говорител - 18" - 900W RMS - 98dB - 30Hz-1kHz

FEATURES

4-inch, fiberglass inside/outside copper voice coil

1800W continuous program power handling

98 dB Sensitivity

30 Hz – 1 kHz Frequency range

Dual spider design with silicon based dampening control

Triple-roll surround and corrugated straight cone geometry

GENERAL SPECIFICATIONS

Nominal Diameter:460 / 18 mm/inch

Rated Impedance:8 Ω

Program Power:1800 W AES

Power handling capacity:900 W AES

Sensitivity:98 dB

Frequency Range:30 Hz ÷ 1000 Hz

Effective Piston Diameter:395 / 15.6 mm/inch

Max Excursion Before Damage (peak to peak):50 / 2.0 mm/inch

Minimum Impedance:5.9 Ω

Voice Coil Diameter:100 / 4 mm/inch

Voice Coil Material:Copper

Voice Coil Winding Depth:23 / 0.9 mm/inch

Number of layers:2

Kind of layer:inside / outside

Top Plate Thickness:12 / 0.5 mm/inch

Cone Material:No pressed pulp

Cone Design:Straight

Surround Material:Polycotton

Surround Design:Triple roll

THIELE/SMALL PARAMETERS

DC resistance:4.8Ω

Mechanical factor:7.6

Electrical factor:0.30

Total factor:0.29

BL Factor:24.6 T · m

Effective Moving Mass:182 g

Equivalent Cas air load:268 liters

Effettive piston area:0.122 m²

Max. linear excursion (mathematical):8.5 mm

Voice - coil inductance @ 1kHz:2.4 mH

Half-space efficiency:3.09%

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 / 0.3 mm/inch

Front Mount Baffle Cut-out:424 / 16.7 mm/inch

Rear Mount Baffle Cut-out:424 / 16.7 mm/inch

Depth:205 / 8.1 mm/inch

Volume occupied by the driver:7.0 / 0.25 liters/ft³

Net Weight:13 / 28.9 kg/lbs

SHIPPING INFORMATION

Shipping weight:13.7 / 30.4 kg/lbs