RCF LF18X400 18" Woofer 2000W 8-Ohm For Bass Reflex & Bass-Horn System
Incredibly 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 LF18X400 uses a fibre loaded cone assembly along with a high excursion triple roll, constant geometry surround. A fully optimized T-pole design generate the minimum amount of flux modulation. The T-pole also features RCF Precision’s spaced gap demodulation technology, progressively braking the voice coil, providing a much smoother transition for the moving mass as it reaches its maximum excursion limits. Forced air venting system.
-
4-inch, fiberglass inside/outside copper voice coil
-
2000W continuous program power handling
-
97.5 dB Sensitivity
-
25 Hz – 1 kHz Frequency range
-
Progressive, spaced, aluminum demodulation rings
-
Forced air ventilation and 14 mm top plate for minimum power compression
-
Dual spider design with silicon based dampening control
-
Triple roll surround and corrugated straight cone geometry
Applications
• The LF18X400 is ideal for use in applications where incredible power handling,long excursion and perfect control is required.
• Ideal for high quality professional bass reflex and bass-horn system.
• The transducer's low frequency extension, coupled with its extremely low generation of harmonic distortion,also makes it ideal for use within critical listening applications such as studio monitoring subwoofer system.
Specifications
-
Nominal Diameter: 460 / 18 mm/inch
-
Rated Impedance: 8 Ohm
-
Program Power: 2000 W AES
-
Power handling capacity: 1000 W AES
-
Sensitivity: 97.5 dB
-
Frequency Range: 25 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: 6.0 Ohm
-
Voice Coil Diameter: 100 / 4 mm/inch
-
Voice Coil Material: Copper
-
Voice Coil Winding Depth: 25 / 1.0 mm/inch
-
Number of layers: 2
-
Kind of layer: inside / outside
-
Top Plate Thickness: 14/0.55 mm/inch
-
Cone Material: No pressed pulp
-
Cone Design: Straight
-
Surround Material: Polycotton
-
Surround Design: Triple roll
Thiele/Small Parameters
-
Resonance frequency: 28 Hz
-
DC resistance: 5.1 Ohm
-
Mechanical factor: 6.5
-
Electrical factor: 0.29
-
Total factor: 0.27
-
BL Factor: 25 T · m
-
Effective Moving Mass: 192 g
-
Equivalent Cas air load: 340 liters
-
Effettive piston area: 0.122 m²
-
Max. linear excursion (mathematical): 9.0 mm
-
Voice - coil inductance @ 1kHz: 2.3 mH
-
Half-space efficiency: 2.64%
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 / 0.25 mm/inch
-
Front Mount Baffle Cut-out: 424 / 16.7 mm/inch
-
Rear Mount Baffle Cut-out: 424 / 16.7 mm/inch
-
Depth: 210/8.3 mm/inch
-
Volume occupied by the driver: 7.0/0.25 liters/ft³
-
Net Weight: 13.3 / 29.3 kg/lbs
Shipping information
-
Shipping weight: 14.3 / 31.5 kg/lbs
