- 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 silicon based dampening control
- M-roll surround and exponential cone geometry
In production for over 10 years, the L18P300 is an industry standard. The very stromg magnetic unit, with 15mm thick plates and specially designed suspensions ensure an excellent control of amplitude of over +/- 12millimeters. The special cooling system with forced air ventilation offer a great haet dissipation and the minimum levels of power compression available on the market. Voice coil construction, suapensions and cone materials are upgraded in order to withstand up to a Kilowatt RMS power.
- General specifications
- Nominal Diameter: 18 inch / 457 mm
- Rated Impedance: 8 ohm
- Program Power: 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
- Minimim Impedance: 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): 5.00 ohm
- Mechanical factor: 8.30 Qms
- Electrical factor (Qes): 0.34 Qes
- Total factor: 0.33 Qts
- BL factor (BL): 23.50 T x m
- Effective moving mass (Mms): 180.0 g
- Equivalent Cas air loaded (Vas): 226.0 liters
- Effettive piston area (Sd): 0.110 m2
- Max. linear excursion (Xmax): 8.0 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
- Standard compliance
- CE marking: Yes
- Size
- Weight: 13 kg / 28.66 lbs
- Height: 202 mm / 7.95 inches
- Diameter: 460 mm / 18.11 inches
- Shipping informations
- Package Width: 520 mm / 20.47 inches
- Package Weight: 15 kg / 33.07 lbs
- Package Height: 270 mm / 10.63 inches
- Package Depth: 495 mm / 19.49 inches
