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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 geometryIncredibly linear frequency response characteristics, the highest power handling of any comparable 18-inch transducer, the lowest power compression.
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.
APPLICATIONS
– The LF18X401 is ideal for use in applications where sizable amounts of low frequency, long excursion and low distortion acoustic power is desired.
– The robust mechanical design and optimised weight of the device make it desirable for use in fixed installation or touring professional loudspeaker systems.
– 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 systems.
General |
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| Product type | Cone driver |
| Brand | RCF |
| Reference | LF18X401 |
| Product code | 11100089 |
Informations |
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| Nominal impedance | 8 ohm |
| Dimensional category | 18 inch |
| Frequency coverage type | Sub, Low |
| Manufacturer sensitivity | 97 dB |
| Calculated sensitivity | 95.62 dB |
| Nominal power handling | 1500 W |
| Bandwidth | 25÷1000 Hz |
Fundamental parameters |
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| Sd | 1200 cm² |
| Mms | 215 gr |
| Le | 0.83 mH |
| Re | 5.4 ohm |
| BL | 26.5 T.m |
Small signal parameters |
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| Fs | 30 Hz |
| Qes | 0.31 |
| Qms | 7.4 |
| Qts | 0.3 |
| Vas | 274 L |
Datas |
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| Xmax | ±12 mm |
| EBP | 97 Hz |
| Zmin | 6 ohm |
| Fs / Qts | 100 Hz |
| Vas * Qts² | 24.66 L |
| Efficiency | 2.3 % |
| Calculated efficiency | 2.3 % |
Dimensions |
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| Voice coil diameter | 4 inch |
| Winding depth | 30 mm |
| Gap height | 15 mm |
| Outside diameter | 465 mm |
| Baffle cutout diameter | 421 mm |
| Front thickness | 18 mm |
| Depth after front | 188 mm |
| Diamètre aimant (mm) | 245 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 |
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