- 4-inch, fiberglass inside/outside copper voice coil
- 1400W continuous program power handling
- 99.5 dB Sensitivity
- 38 Hz – 1 kHz Frequency range
- Dual spider design with silicon based dampening control
- M-roll surround and exponential cone geometry
The L18S801 is the RCF classical high efficiency 18″ woofer. A perfect blend of voice coil length, moving mass weight and suspensions control makes this transducer the preferred solution for many speakers and rental companies. Voice coil construction, suspension and cone materials are upgrade in order to withstand up to 700 watt RMS power.
- General specifications
- Nominal Diameter: 18 inch / 457 mm
- Rated Impedance: 8 ohm
- Program Power: 1400 W
- Power handling capacity: 700 W
- Sensitivity: 99.5 dB
- Frequency range: 38 – 1000 Hz
- Effective piston diameter: 380 mm / 14.96 inch
- Max. Excursion Before Damage: 40 mm / 1.57 inch
- Minimim Impedance: 6.3 ohm
- Voice Coil Diameter: 4.0 inch / 102 mm
- Voice Coil Winding Material: Copper
- Voice Coil Length: 19 mm / 0.75 inch
- Number of layers: 2
- Kind of layers: inside/outside
- Top Plate Thickness: 10 mm / 0.39 inch
- Cone Design: Curved
- Surround Material: Polycotton
- Surround Design: M-roll
- Magnets: Ceramic
- Dual-force air ventilation: Yes
- Spider: Dual with silicon based damping control
- Thiele – small parameters
- Resonance frequency (Fs): 39 Hz
- DC resistance (Re): 4.90 ohm
- Mechanical factor: 8.30 Qms
- Electrical factor (Qes): 0.30 Qes
- Total factor: 0.29 Qts
- BL factor (BL): 24.50 T x m
- Effective moving mass (Mms): 148.0 g
- Equivalent Cas air loaded (Vas): 206.0 liters
- Effettive piston area (Sd): 0.110 m2
- Max. linear excursion (Xmax): 7.0 mm
- Voice coil inductance @ 1kHz (Le1k): 1.70 mH
- Half-space efficency (Eff): 3.93%
- Mounting Information
- Overall diameter: 460 mm / 18.11 inches
- Bolt circle diameter: 438 mm / 17.24 inch
- Bolt hole diameter: 8 mm / 0.31 inch
- Front mount baffle cut-out: 416 mm / 16.38 inch
- Rear mount baffle cut-out: 418 mm / 16.46 inch
- Volume occupied by the driver: 6.5 liters / 0.26 ft3
- Standard compliance
- CE marking: Yes
- Size
- Weight: 12 kg / 26.46 lbs
- Height: 202 mm / 7.95 inches
- Diameter: 460 mm / 18.11 inches
- Shipping informations
- Package Width: 510 mm / 20.08 inches
- Package Weight: 14 kg / 30.86 lbs
- Package Height: 240 mm / 9.45 inches
- Package Depth: 480 mm / 18.9 inches
