RCF LF18N401

Incredibly linear frequency response characteristics,the highest power handling of any comparable 18-inch neodymium transducer, the lowest power compression.
The LF18N401 uses a fibre loaded cone assembly along with a high excursion triple roll,constant geometry surround.
This combination provides remarkablestrength venting system guarantee a very efficient voice coil ventilation for minimum power compression and higher power handling.

18" Leistung: 1200W RMS, 2400W Programmleistung Schalldruck SPL 1W/1m: 98dB Freq. Range 30-1000 Hz

Features

* 4 - inch, fiberglass inside-outside copper voice coil
* 2400 Watt continuous program power handling
* 98 dB Sensitivity
* 30 Hz - 1 kHz Frequency range
* Dual-forced air ventilation and 15mm top plate for minimum power compression
* Dual spider design with silicon based dampening control
* Triple-roll surround and corrugated straight cone geometry

General Specifications

* Nominal Diameter: 460 / 18 mm/inch
* Rated Impedance: 8 Ω
* Program Power: 2400 W AES
* Power handling capacity: 1200 W AES
* Sensitivity: 98 dB
* Frequency Range: 30 Hz ÷ 1000 Hz
* Effective Piston Diameter: 395 / 15.6 mm/inch
* Max Excursion Before Damage (peak to peak): 52 / 2.1 mm/inch
* Minimum Impedance: 6.3 Ω
* 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: 15 / 0.6 mm/inch
* Cone Material: No pressed pulp
* Cone Design: Straight
* Surround Material: Polycotton
* Surround Design: Triple roll

Thiele/Small Parameters

* DC resistance: 5.1Ω
* Mechanical factor: 6.5
* Electrical factor: 0.27
* Total factor: 0.26
* BL Factor: 27.8 T · m
* Effective Moving Mass: 201 g
* Equivalent Cas air load: 257 liters
* Effettive piston area: 0.122 m²
* Max. linear excursion (mathematical): 8.8 mm
* Voice - coil inductance @ 1kHz: 2.5 mH
* Half-space efficiency: 3.01%

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 / 0.3 mm/inch
* Front Mount Baffle Cut-out: 424 / 16.7 mm/inch
* Rear Mount Baffle Cut-out: 424 / 16.7 mm/inch
* Depth: 205 / 8.1 mm/inch
* Volume occupied by the driver: 5.5 / 0.19 liters/ft³
* Net Weight: 9.1 / 20.2 kg/lbs

Shipping information

* Shipping weight: 9.8 / 21.8 kg/lbs