RCF LF18N401 bassoelementti

RCF LF18N401 bassoelementti

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.

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: 18 inch / 457 mm
Rated Impedance: 8 ohm
Program Power (watt): 2400 W
Power handling capacity: 1200 W
Sensitivity: 98.0 dB
Frequency range: 30 - 1000 Hz
Effective piston diameter: 395 mm / 15.55 inch
Max. Excursion Before Damage: 52 mm / 2.05 inch
Minimum Impedance (ohm): 6.3 ohm
Voice Coil Diameter: 4.0 inch / 102 mm
Voice Coil Winding Material: Copper
Voice Coil Length: 25 mm / 0.98 inch
Number of layers: 2
Kind of layers: inside/outside
Top Plate Thickness: 15 mm / 0.59 inch
Cone Design: Straight
Surround Material: Polycotton
Surround Design: Triple roll
Magnets: Neodymium
Dual-force air ventilation: Yes
Spider: Single with silicon based damping control

Thiele - small parameters
Resonance frequency (Fs): 32 Hz
DC resistance (Re) (ohm): 5.10 ohm
Mechanical factor: 6.50 Qms
Electrical factor: 0.27 Qes
Total factor: 0.26 Qts
Bl factor (Bl) (T x m): 27.80 T x m
Effective moving mass (Mms): 201.0 g
Equivalent Cas air loaded (Vas): 257.0 liters
Effective piston area (Sd): 0.120 m2
Max. linear excursion (Xmax): 9 mm
Voice coil inductance @ 1kHz (Le1k): 2.50 mH
Half-space efficency (Eff): 3.01%

Mounting informations
Overall diameter: 465 mm / 18.31 inches
Bolt circle diameter: 442-447 mm / 17.4-17.6 inch
Bolt hole diameter: 7 mm / 0.28 inch
Front mount baffle cut-out: 424 mm / 16.69 inch
Rear mount baffle cut-out: 424 mm / 16.69 inch
Volume occupied by the driver: 5.5 liters / 0.22 ft3

Standard compliance
CE marking: Yes

Size
Height: 204 mm / 8.03 inches
Diameter: 465 mm / 18.31 inches
Weight: 9.5 kg / 20.94 lbs