RCF L18P300-07 - 8 Ohm 18" Woofer Driver 2000W

Description:

In production for over 20 years, the L18P300 is an industry-standard. With 15 mm thick plates and specially designed suspensions, the sturdy magnetic unit ensures an excellent amplitude control of over +/- 12 millimeters. The special cooling system with forced air ventilation offers excellent heat dissipation and minimum power compression. Voice coil construction, suspensions, and cone materials can withstand massive RMS power. The L18P300 finds its best application in bass reflex and bandpass systems. Its capacity to reproduce extremely low frequencies with remarkable definition makes it one of the favorite woofer in its category, ideal for live and recorded music.

Features:

4-inch, fiberglass inside/outside copper voice coil
2000W continuous program power handling
97 dB Sensitivity
35 Hz – 1.5 kHz Frequency range
Forced air ventilation and 15mm top plate for minimum power compression
Dual spider design with silicone based dampening control
M-roll surround and exponential cone geometry

Specifications:

GENERAL SPECIFICATIONS
Nominal Diameter: 18 inch / 457 mm
Rated Impedance: 8 ohm
Program Power (watt): 2000 W
Power handling capacity: 1000 W
Sensitivity: 97.0 dB
Frequency range: 35 - 1000 Hz
Effective piston diameter: 380 mm / 14.96 inch
Max. Excursion Before Damage: 40 mm / 1.57 inch
Minimum Impedance (ohm): 6.0 ohm
Voice Coil Diameter: 4.0 inch / 102 mm
Voice Coil Winding Material: Copper
Voice Coil Length: 23 mm / 0.91 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: M-roll
Magnets: Ceramic
Dual-force air ventilation: Yes
Spider: Dual with silicon based damping control
THIELE - SMALL PARAMETERS
Resonance frequency (Fs): 33 Hz
DC resistance (Re) (ohm): 5.00 ohm
Mechanical factor: 8.30 Qms
Electrical factor: 0.34 Qes
Total factor: 0.33 Qts
Bl factor (Bl) (T x m): 23.50 T x m
Effective moving mass (Mms): 180.0 g
Equivalent Cas air loaded (Vas): 226.0 liters
Effective piston area (Sd): 0.110 m2
Max. linear excursion (Xmax): 8 mm
Voice coil inductance @ 1kHz (Le1k): 1.80 mH
Half-space efficency (Eff): 2.30%
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
SIZE
Height: 202 mm / 7.95 inches
Diameter: 460 mm / 18.11 inches
Weight: 13 kg / 28.66 lbs
SHIPPING INFORMATION
Package Height: 270 mm / 10.63 inches
Package Width: 520 mm / 20.47 inches
Package Depth: 495 mm / 19.49 inches
Package Weight: 15 kg / 33.07 lbs