RCF |
LF18X400 |
LF18X400-8 |
11185002 |
Cone driver |
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Brand RCF |
Model LF18X400 |
TLHP code LF18X400-8 |
Manufacturer code 11185002 |
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Product type Cone driver |
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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.
Features :
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
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.
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.
General |
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Product type | Cone driver |
Brand | RCF |
Reference | LF18X400 |
Product code | 11185002 |
Informations |
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Nominal impedance | 8 ohm |
Dimensional category | 18 inch |
Frequency coverage type | Sub, Low |
Manufacturer sensitivity | 97 dB |
Calculated sensitivity | 95.95 dB |
Nominal power handling | 1000 W |
Bandwidth | 25÷1000 Hz |
Fundamental parameters |
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Sd | 1200 cm² |
Mms | 192 gr |
Le | 1.2 mH |
Re | 5.1 ohm |
BL | 25 T.m |
Small signal parameters |
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Fs | 28 Hz |
Qes | 0.29 |
Qms | 6.5 |
Qts | 0.27 |
Vas | 340 L |
Datas |
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Xmax | ±9 mm |
Calculated Xmax | ±10.1667 mm |
EBP | 97 Hz |
Zmin | 6 ohm |
Fs / Qts | 104 Hz |
Vas * Qts² | 24.79 L |
Efficiency | 2.64 % |
Calculated efficiency | 2.48 % |
Weight | ~15.4 kg |
Dimensions |
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Voice coil diameter | 4 inch |
Winding depth | 25 mm |
Gap height | 14 mm |
Outside diameter | 465 mm |
Baffle cutout diameter | 421 mm |
Front thickness | 18 mm |
Depth after front | 210 mm |
Diamètre aimant (mm) | 225 mm |
Shape & Materials |
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Front chape | Cylindrical |
Magnet type | Ferrite |
Basket masterial | Aluminium |
Winding material | Copper |
Voice coil former | Glass fiber |
Surround material | Cloth |
This system is only available for technical questions. For questions of prices, availability of products and deadline thank you to send your request by the contact page.
* Frequency response curve of the loudspeaker taken in a hemispherical
* Impedance magnitude curve measured in free air.