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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.
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 transducers 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.
Main 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
This product appears to be unavailable. Please contact us if you require this product, and we will make further enquiries or look for an equivalent model..
General Specifications
- Nominal Diameter: 460 mm/ 18 inch
- Rated Impedance: 8 O
- 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 mm / 15.6 inch
- Max Excursion Before Damage (peak to peak): 50 mm / 2.0 inch
- Minimum Impedance: 6.0 O
- Voice Coil Diameter: 100 mm / 4 inch
- Voice Coil Material: Copper
- Voice Coil Winding Depth: 25 mm/ 1.0 inch
- Number of layers: 2
- Kind of layer: inside / outside
- Top Plate Thickness: 14 mm / 0.55 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 Ohms
- 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 mm / 18.3 inch
- Bolt Circle Diameter: 442-447 mm / 17.4-17.6 inch
- Bolt Hole Diameter: 6.5 mm / 0.25 inch
- Front Mount Baffle Cut-out: 424 mm / 16.7 inch
- Rear Mount Baffle Cut-out: 424 mm / 16.7 inch
- Depth: 210 mm/8.3 inch
- Volume occupied by the driver: 7.0 litres / 0.25 ft³
- Net Weight: 13.3 kg / 29.3 lbs
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View RCF website for more information for RCF LF18X400