RCF L18P400 18" Power: 1000W rms, 2000W prog. Sensitivity: 97,5 dB Freq. Range 25-1000 Hz
RCF L18P400 18" Power: 1000W rms, 2000W prog. Sensitivity: 97,5 dB Freq. Range 25-1000 Hz
SKU: L18P400
Available options
Description
RCF L18P400 18" Power: 1000W rms, 2000W prog. Sensitivity: 97,5 dB Freq. Range 25-1000 Hz
Incredibly linear frequency response characteristics, extreme high power handling while generating the lowest harmonic distortion of any comparable 18-inch trasducer wtihin its application range. The L18P400 uses a fibre loaded cone assembly along with a high excursion triple roll,constant geometry surround. A fully optimised T-pole design generate the minimum amount of flux modulation. The T-pole also features RCf Precision's spaced gap demodulation technology, progressively braking the voice coil, providing a much smoother transition for the moving mass as it reachees its maximum excursion limits.Forced air venting system.
Features
- 4-inch, fiberglass inside/outside copper voice coil
- 2000W continuous program power handling
- 97.5 dB Sensitivity
- 25 Hz – 1 kHz Frequency range
- Aluminum demodulation ring
- 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
Specifications
General Specifications
- Nominal Diameter: 18 inch / 457 mm
- Rated Impedance: 8 ohm
- Program Power: 2000 W
- Power Handling Capacity: 1000 W
- Sensitivity: 97.5 dB
- Frequency Range: 25–1000 Hz
- Effective Piston Diameter: 395 mm / 15.55 inch
- Max. Excursion Before Damage: 50 mm / 1.97 inch
- Minimum Impedance: 6.5 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: Ceramic
- Dual-Force Air Ventilation: Yes
- Spider: 03
Thiele–Small Parameters
- Resonance Frequency (Fs): 29 Hz
- DC Resistance (Re): 5.10 ohm
- Mechanical Factor (Qms): 7.60
- Electrical Factor (Qes): 0.29
- Total Factor (Qts): 0.28
- BL Factor (Bl): 24.60 T × m
- Effective Moving Mass (Mms): 200.0 g
- Equivalent Cas Air Loaded (Vas): 340.0 liters
- Effective Piston Area (Sd): 0.120 m²
- Max. Linear Excursion (Xmax): 9 mm
- Voice Coil Inductance @ 1 kHz (Le1k): 1.20 mH
- Half-Space Efficiency (Eff): 2.63%
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: 6 liters / 0.24 ft³
Standard Compliance
- Safety Agency: CE Compliant
Size & Weight
- Height: 206 mm / 8.11 inches
- Diameter: 465 mm / 18.31 inches
- Weight: 13.5 kg / 29.76 lbs
Shipping Information
- Package Height: 270 mm / 10.63 inches
- Package Width: 520 mm / 20.47 inches
- Package Depth: 500 mm / 19.69 inches
- Package Weight: 15.5 kg / 34.17 lbs