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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 optimised 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
- 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
- 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.
|Nominal Diameter||460 / 18 mm/inch|
|Rated Impedance||8 O|
|Program Power||2000 W AES|
|Power handling capacity||1000 W AES|
|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 O|
|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|
|Surround Design||Triple roll|
|Resonance frequency||28 Hz|
|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|
|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|
|Volume occupied by the driver||7.0/0.25 liters/ft³|
|Net Weight||13.3 / 29.3 kg/lbs|
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