RCF WOOFER. LF18N405
351,19 Add to cart

RCF WOOFER. LF18N405

351,19

Brand: RCF
Article number: LF18N405

  • 4,0 – inch Inside/Outside copper voice coil
  • 3000 Watt continuous program power handling
  • 97.5 dB Sensitivity
  • 25 Hz – 1kHz Frequency range

Description

  • 4,0 – inch Inside/Outside copper voice coil
  • 3000 Watt continuous program power handling
  • 97.5 dB Sensitivity
  • 25 Hz – 1kHz Frequency range
  • Hypervented magnetic structure for minimum power compression
  • Triple roll surround and exponential cone geometry
The LF18N405 is an extended low frequency with high power handling , designed to provide powerful and accurate bass frequencies with low distortion, low power compression and very high SPL. The LF18N405 uses a fibre loaded cone assembly along a large triple roll surround, this combination provides remarkable strength and control. The single spider system is specifically designed with a heavy cloth which ensures excellent control during large excursions. A fully optimised T-pole design generates the minimum amount of flux modulation. The Dual-forced air venting magnetic structure system provides a very efficient voice coil ventilation to minimize the power compression.

  • General specifications
    • Nominal Diameter: 18 inch / 457 mm
    • Rated Impedance: 8 ohm
    • Program Power: 3000 W
    • Power handling capacity: 1500 W
    • Sensitivity: 97.0 dB
    • Frequency range: 30 – 1000 Hz
    • Effective piston diameter: 395 mm / 15.55 inch
    • Max. Excursion Before Damage: 58 mm / 2.28 inch
    • Minimim Impedance: 6.0 ohm
    • Voice Coil Diameter: 4.0 inch / 102 mm
    • Voice Coil Winding Material: Copper
    • Voice Coil Length: 36 mm / 1.42 inch
    • Number of layers: 2
    • Kind of layers: inside/outside
    • Top Plate Thickness: 15 mm / 0.59 inch
    • Cone Design: Curved
    • Surround Material: Polycotton
    • Surround Design: Triple roll
    • Magnets: Neodymium
    • Hypervented magnetic structure: Yes
    • Spider: Single

  • Thiele – small parameters
    • Resonance frequency (Fs): 30 Hz
    • DC resistance (Re): 4.90 ohm
    • Mechanical factor: 7.00 Qms
    • Electrical factor (Qes): 0.34 Qes
    • Total factor: 0.32 Qts
    • BL factor (BL): 26.50 T x m
    • Effective moving mass (Mms): 261.0 g
    • Equivalent Cas air loaded (Vas): 227.0 liters
    • Effettive piston area (Sd): 0.120 m2
    • Max. linear excursion (Xmax): 14.0 mm
    • Voice coil inductance @ 1kHz (Le1k): 1.70 mH
    • Half-space efficency (Eff): 1.70%

  • Mounting Information
    • 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: 425 mm / 16.73 inch
    • Volume occupied by the driver: 5.5 liters / 0.22 ft3

  • Standard compliance
    • CE marking: Yes

  • Size
    • Weight: 8.8 kg / 19.4 lbs
    • Height: 208 mm / 8.19 inches
    • Diameter: 465 mm / 18.31 inches

  • Shipping informations
    • Package Width: 495 mm / 19.49 inches
    • Package Weight: 10 kg / 22.05 lbs
    • Package Height: 255 mm / 10.04 inches
    • Package Depth: 525 mm / 20.67 inches

Additional information

Weight 10 kg
Dimensions 525 × 495 × 255 cm
Brand

Nominal Diameter

18 inch / 457 mm

Rated Impedance

8 ohm

Program Power

3000 W

Power handling capacity

1500 W

Sensitivity

97.0 dB

Frequency Range

30 – 1000 Hz

Effective Piston Diameter

395 mm / 15.55 inch

Max Excursion Before Damage

58 mm / 2.28 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

Weight

Height

Diameter

Package Width

Package Weight

Package Height

Package Depth