RCF LF18G401 8 Ohm

The LF18G401 is a 18-inch woofer with linear frequency response cheracteristics and very high power handling. The LF18G401 uses a fibre loaded cone assembly along with a high excursion triple roll, constant geometry surround. This combination provides remarkable strength and peak to peak maximum excursion of 50mm.

Features:

• 4-inch, fiberglass inside/outside copper voice coil
• 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
• Nominal Diameter: 18 inch / 457 mm
• Rated Impedance: 8 ohm
• Program Power (watt): 1800 W
• Power handling capacity: 900 W
• Sensitivity: 98 dB
• Frequency range: 30 - 1000 Hz
• Effective piston diameter: 395 mm / 15.55 inch
• Max. Excursion Before Damage: 50 mm / 1.97 inch
• Minimum Impedance (ohm): 5 ohm
• Voice Coil Diameter: 4.0 inch / 102 mm
• Voice Coil Material: Copper
• Voice Coil Winding Material: 23 mm / 0.91 inch
• Number of layers: 2
• Kind of layers: inside/outside
• Top Plate Thickness: 12 mm / 0.47 inch
• Cone Design: Straight
• Surround Material: Polycotton
• Surround Design: Triple roll
• Magnets: Ceramic
• Spider: Dual with silicon based damping control
• Resonance frequency (Fs): 33 Hz
• DC resistance (Re) (ohm): 4.80 ohm
• Mechanical factor: 7.60 Qms
• Electrical factor: 0.30 Qes
• Total factor: 0.29 Qts
• Bl factor (Bl) (T x m): 24.60 T x m
• Effective moving mass (Mms): 182 gr
• Equivalent Cas air loaded (Vas): 268 liters
• Effettive piston area (Sd): 0.12 m2
• Max. linear excursion (Xmax): 9 mm
• Voice coil inductance @ 1kHz (Le1k): 1.80 mH
• Half-space efficency (Eff): 3.09%
• Overall diameter: 465 mm / 18.31 inches
• Bolt circle diameter: 442-447 mm / 17.4-17.6 inch
• Bolt hole diameter: 7 mm / 0.28 inch
• Front mount baffle cut-out: 424 mm / 16.69 inch
• Rear mount baffle cut-out: 424 mm / 16.69 inch
• Volume occupied by the driver: 6 liters / 0.24 ft3
• CE marking: Yes
• Height: 196 mm / 7.72 inches
• Diameter: 465 mm / 18.31 inches
• Weight: 13 kg / 28.66 lbs

Specs:

• Type: Replacement Part
• Theme: PA and Sonication

Further links:

• Print View