RCF LF18N405 18" Power: 1500W rms, 3000W prog. Sensitivity: 97 dB Freq. Range 25-1000 Hz
RCF LF18N405 18" Power: 1500W rms, 3000W prog. Sensitivity: 97 dB Freq. Range 25-1000 Hz
SKU: LF18N405
Available options
Description
RCF LF18N405 18" Power: 1500W rms, 3000W prog. Sensitivity: 97 dB Freq. Range 25-1000 Hz
The LF18N405 is an extended low frequency with high power handling , designed to provide powerful and accurate bass frequencies with low distortion, low power compression and very high SPL. The LF18N405 uses a fibre loaded cone assembly along a large triple roll surround, this combination provides remarkable strength and control. The single spider system is specifically designed with a heavy cloth which ensures excellent control during large excursions. A fully optimised T-pole design generates the minimum amount of flux modulation. The Dual-forced air venting magnetic structure system provides a very efficient voice coil ventilation to minimize the power compression.
Features
- 4,0 - inch Inside/Outside copper voice coil
- 3000 Watt continuous program power handling
- 97.5 dB Sensitivity
- 25Hz - 1kHz Frequency range
- Hypervented magnetic structure for minimum power compression
- Triple roll surround and exponential cone geometry
Specifications
General Specifications
- Nominal Diameter: 18 inch / 457 mm
- Rated Impedance: 8 ohm
- Program Power: 3000 W
- Power Handling Capacity: 1500 W
- Sensitivity: 97.0 dB
- Frequency Range: 30–1000 Hz
- Effective Piston Diameter: 395 mm / 15.55 inch
- Max. Excursion Before Damage: 58 mm / 2.28 inch
- Minimum Impedance: 6.0 ohm
- Voice Coil Diameter: 4.0 inch / 102 mm
- Voice Coil Winding Material: Copper
- Voice Coil Length: 36 mm / 1.42 inch
- Number of Layers: 2
- Kind of Layers: Inside/Outside
- Top Plate Thickness: 15 mm / 0.59 inch
- Cone Design: Curved
- Surround Material: Polycotton
- Surround Design: Triple Roll
- Magnets: Neodymium
- Hypervented Magnetic Structure: Yes
- Spider: 01
Thiele–Small Parameters
- Resonance Frequency (Fs): 30 Hz
- DC Resistance (Re): 4.90 ohm
- Mechanical Factor (Qms): 7.00
- Electrical Factor (Qes): 0.34
- Total Factor (Qts): 0.32
- BL Factor (Bl): 26.50 T × m
- Effective Moving Mass (Mms): 261.0 g
- Equivalent Cas Air Loaded (Vas): 227.0 liters
- Effective Piston Area (Sd): 0.120 m²
- Max. Linear Excursion (Xmax): 14 mm
- Voice Coil Inductance @ 1 kHz (Le1k): 1.70 mH
- Half-Space Efficiency (Eff): 1.70%
Mounting Information
- 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: 425 mm / 16.73 inch
- Volume Occupied by the Driver: 5.5 liters / 0.22 ft³
Standard Compliance
- Safety Agency: CE Compliant
Size & Weight
- Height: 208 mm / 8.19 inches
- Diameter: 465 mm / 18.31 inches
- Weight: 8.8 kg / 19.4 lbs
Shipping Information
- Package Height: 255 mm / 10.04 inches
- Package Width: 495 mm / 19.49 inches
- Package Depth: 525 mm / 20.67 inches
- Package Weight: 10 kg / 22.05 lbs