Product Details

LF18X401

WOOFER

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Description

DESCRIPTIONS

Very linear frequency response characteristics, extreme high power handling while generating the lowest harmonic distortion of any comparable 18-inch transducer within its application range. The LF18X401 uses a fibre loaded cone assembly along with a high excursion triple roll surround. This combination provides remarkable strength and a peak to peak maximum excursion of 50 mm. The new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling.

FEATURES
  • 4-inch, fiberglass inside/outside copper voice coil
  • 3000W continuous program power handling
  • 97.5 dB Sensitivity
  • 25 Hz – 1 kHz Frequency range
  • Dual Forced Hyperventing System
  • Dual spider design with silicon based dampening control
  • Triple-roll surround and corrugated straight cone geometry
SPECIFICATIONS

General specifications

NOMINAL DIAMETER : 18 inch / 457 mm
RATED IMPEDANCE : 8 ohm
PROGRAM POWER : 3000 W
POWER HANDLING CAPACITY : 1500 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 : 6.5 ohm
VOICE COIL DIAMETER : 4.0 inch / 102 mm
VOICE COIL WINDING MATERIAL : Copper
VOICE COIL LENGTH : 30 mm / 1.18 inch
NUMBER OF LAYERS : 2
KIND OF LAYERS : inside/outside
TOP PLATE THICKNESS : 15 mm / 0.59 inch
CONE DESIGN : Straight
SURROUND MATERIAL : Polycotton
SURROUND DESIGN : Triple roll
MAGNETS : Ceramic
DUAL-FORCE AIR VENTILATION : Yes
SPIDER : Dual with silicon based damping control

Thiele – small parameters

RESONANCE FREQUENCY (FS) : 30 Hz
DC RESISTANCE (RE) : 5.40 ohm
MECHANICAL FACTOR : 7.40 Qms
ELECTRICAL FACTOR (QES) : 0.31 Qes
TOTAL FACTOR : 0.30 Qts
BL FACTOR (BL) : 26.50 T x m
EFFECTIVE MOVING MASS (MMS) : 215.0 g
EQUIVALENT CAS AIR LOADED (VAS) : 274.0 liters
EFFETTIVE PISTON AREA (SD) : 0.120 m2
MAX. LINEAR EXCURSION (XMAX) : 12.0 mm
VOICE COIL INDUCTANCE @ 1KHZ (LE1K) : 0.83 mH
HALF-SPACE EFFICENCY (EFF) : 2.30%

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 : 6.5 liters / 0.26 ft3

Standard compliance

CE MARKING : Yes

Size

WEIGHT : 12.5 kg / 27.56 lbs
HEIGHT : 196 mm / 7.72 inches
DIAMETER : 465 mm / 18.31 inches

Shipping informations

PACKAGE WIDTH : 524 mm / 20.63 inches
PACKAGE WEIGHT : 15 kg / 33.07 lbs
PACKAGE HEIGHT : 254 mm / 10 inches
PACKAGE DEPTH : 494 mm / 19.45 inches

Brand

RCF

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