RCF LF18X451 18" Power: 1800W rms, 3600W prog. Sensitivity: 97 Freq. Range 30-1000 Hz
RCF LF18X451 18" Power: 1800W rms, 3600W prog. Sensitivity: 97 Freq. Range 30-1000 Hz
SKU: LF18X451
Available options
Description
RCF LF18X451 18" Power: 1800W rms, 3600W prog. Sensitivity: 97 Freq. Range 30-1000 Hz
Incredibly linear frequency response characteristics, the highest power handling of any comparable 18-inch transducer, the lowest power compression. The LF18X451 features a fibre loaded cone assembly along with a high excursion triple roll, constant geometry surround: this combination provides remarkable strength and a peak to peak maximum excursion of 54 mm. The new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling. A double silicon spider system ensures excellent control during large excursions. A fully optimised T-pole design generate the minimum amount of flux modulation.
Features
- 4,5 - inch fiberglas Inside/Outside copper voice coil
- 3600 Watt continuous program power handling
- 97 dB Sensitivity
- 30 Hz - 1 kHz Frequency range
- Dual Forced Hyperventing System
- Dual spider designed with silicon based damping control
- BL of 30.5 Txm to provide a faster and accurate low frequency
Specifications
General Specifications
- Nominal Diameter: 18 inch / 457 mm
- Rated Impedance: 8 ohm
- Program Power: 3600 W
- Power Handling Capacity: 1800 W
- Sensitivity: 97.0 dB
- Frequency Range: 30–1000 Hz
- Effective Piston Diameter: 395 mm / 15.55 inch
- Max. Excursion Before Damage: 54 mm / 2.13 inch
- Minimum Impedance: 6.8 ohm
- Voice Coil Diameter: 4.5 inch / 114 mm
- Voice Coil Winding Material: Copper
- Voice Coil Length: 34 mm / 1.34 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: Ceramic
- Dual-Force Air Ventilation: Yes
- Spider: 03
Thiele–Small Parameters
- Resonance Frequency (Fs): 30 Hz
- DC Resistance (Re): 5.40 ohm
- Mechanical Factor (Qms): 6.70
- Electrical Factor (Qes): 0.29
- Total Factor (Qts): 0.28
- BL Factor (Bl): 30.50 T × m
- Effective Moving Mass (Mms): 260.0 g
- Equivalent Cas Air Loaded (Vas): 220.0 liters
- Effective Piston Area (Sd): 0.120 m²
- Max. Linear Excursion (Xmax): 14 mm
- Voice Coil Inductance @ 1 kHz (Le1k): 1.38 mH
- Half-Space Efficiency (Eff): 1.90%
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: 424 mm / 16.69 inch
- Volume Occupied by the Driver: 6.5 liters / 0.26 ft³
Standard Compliance
- Safety Agency: CE Compliant
Size & Weight
- Height: 212 mm / 8.35 inches
- Diameter: 465 mm / 18.31 inches
- Weight: 15.2 kg / 33.51 lbs
Shipping Information
- Package Height: 254 mm / 10 inches
- Package Width: 524 mm / 20.63 inches
- Package Depth: 494 mm / 19.45 inches
- Package Weight: 17 kg / 37.48 lbs