RCF WOOFER. LF18G400
406,00 Add to cart

RCF WOOFER. LF18G400

406,00

Brand: RCF
Article number: LF18G400

  • 4-inch, fiberglass inside/outside copper voice coil
  • 2000W continuous program power handling
  • 97.5 dB Sensitivity
  • 25 Hz – 1 kHz Frequency range

Description

  • 4-inch, fiberglass inside/outside copper voice coil
  • 2000W continuous program power handling
  • 97.5 dB Sensitivity
  • 25 Hz – 1 kHz Frequency range
  • T-pole, curved on top. 14mm top plate for minimum power compression
  • Dual spider design with silicon based dampening control
  • Triple-roll surround and corrugated straight cone geometry
The LF18G400 is a 18-inch woofer with linear frequency response cheracteristics and very high power handling. The LF18G400 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. Special features of this 18″ are the unique T-pole, curved against voice coil over-driving and 14mm top plate for best control and power handling.

  • General specifications
    • Nominal Diameter: 18 inch / 457 mm
    • Rated Impedance: 8 ohm
    • Program Power: 2000 W
    • Power handling capacity: 1000 W
    • Sensitivity: 97.5 dB
    • Frequency range: 25 – 1000 Hz
    • Effective piston diameter: 395 mm / 15.55 inch
    • Max. Excursion Before Damage: 50 mm / 1.97 inch
    • Minimim Impedance: 6.0 ohm
    • Voice Coil Diameter: 4.0 inch / 102 mm
    • Voice Coil Winding Material: Copper
    • Voice Coil Length: 25 mm / 0.98 inch
    • Number of layers: 2
    • Kind of layers: inside/outside
    • Top Plate Thickness: 14 mm / 0.55 inch
    • Cone Design: Straight
    • Surround Material: Polycotton
    • Surround Design: Triple roll
    • Magnets: Ceramic
    • Spider: Dual with silicon based damping control

  • Thiele – small parameters
    • Resonance frequency (Fs): 28 Hz
    • DC resistance (Re): 5.10 ohm
    • Mechanical factor: 4.60 Qms
    • Electrical factor (Qes): 0.29 Qes
    • Total factor: 0.27 Qts
    • BL factor (BL): 24.20 T x m
    • Effective moving mass (Mms): 190.0 g
    • Equivalent Cas air loaded (Vas): 360.0 liters
    • Effettive piston area (Sd): 0.120 m2
    • Max. linear excursion (Xmax): 9.0 mm
    • Voice coil inductance @ 1kHz (Le1k): 1.20 mH
    • Half-space efficency (Eff): 2.63%

  • Mounting Information
    • Overall diameter: 465 mm / 18.31 inches
    • Bolt circle diameter: 442-447 mm / 17.4-17.6 inch
    • Bolt hole diameter: 424 mm / 16.69 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: 7 liters / 0.28 ft3

  • Standard compliance
    • CE marking: Yes

  • Physical specifications
    • Color: Black

  • Size
    • Weight: 13.3 kg / 29.32 lbs
    • Height: 228 mm / 8.98 inches
    • Diameter: 465 mm / 18.31 inches

  • Shipping informations
    • Package Width: 515 mm / 20.28 inches
    • Package Weight: 15 kg / 33.07 lbs
    • Package Height: 270 mm / 10.63 inches
    • Package Depth: 505 mm / 19.88 inches

Additional information

Weight 15 kg
Dimensions 505 × 515 × 270 cm
Brand

Nominal Diameter

18 inch / 457 mm

Rated Impedance

8 ohm

Program Power

2000 W

Power handling capacity

1000 W

Sensitivity

97.5 dB

Frequency Range

25 – 1000 Hz

Effective Piston Diameter

395 mm / 15.55 inch

Max Excursion Before Damage

50 mm / 1.97 inch

Minimim Impedance

Voice coil diameter

Voice Coil Winding Material

Voice Coil Length

Number of layers

Kind of layers

Top Plate Thickness

Cone Design

Surround Material

Surround Design

Magnets

Spider

Resonance frequency (Fs)

DC resistance (Re)

Mechanical factor

Electrical factor (Qes)

Total factor

BL factor (BL)

Effective moving mass (Mms)

Equivalent Cas air loaded (Vas)

Effettive piston area (Sd)

Max. linear excursion (Xmax)

Half-space efficency (Eff)

Overall diameter

Bolt circle diameter

Bolt hole diameter

Front mount baffle cut-out

Rear mount baffle cut-out

Volume occupied by the driver

CE marking

Color

Weight

Height

Diameter

Package Width

Package Weight

Package Height

Package Depth