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RCF L18P300 - 18" 1000W 8 Ohm part for Martin Audio EM201 DLS101
In production for over 10 years, the L18P300 is an industry standard.
The very strong 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 heat dissipation and the minimum levels of power compression available on the market.
Voice coil construction, suspensions and cone materials are upgraded in order to withstand up to a Kilowatt RMS power.
Applications:
The L18P300 finds its best application in both bass reflex and band pass system.
Its capacity to reproduce extremely low frequency along with extraordinary definition make it a no compromise woofer in its category, ideal for both live and recorded music.
Main 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 silicon based dampening control
- M-roll surround and exponential cone geometry
General Specifications
- Nominal Diameter: 460 / 18 inch
- Rated Impedance: 8 O
- Program Power: 2000 W AES
- Power handling capacity: 1000 W AES
- Sensitivity: 97 dB
- Frequency Range: 35 Hz - 1000 Hz
- Effective Piston Diameter: 380 mm / 15 inch
- Max Excursion Before Damage (peak to peak): 40 mm / 1.6 inch
- Minimum Impedance: 6.0 O
- Voice Coil Diameter: 100 mm / 4 inch
- Voice Coil Material: Copper
- Voice Coil Winding Depth: 23 mm / 0.9 inch
- Number of layers: inside / outside
- Kind of layer: 2
- Top Plate Thickness: 15 mm / 0.6 inch
- Cone Material: No pressed pulp
- Cone Design: Curved
- Surround Material: Polycotton
- Surround Design: M - roll
Thiele/Small Parameters
- Resonance frequency: 33 Hz
- DC resistance: 5.0O
- Mechanical factor: 8.3
- Electrical factor: 0.34
- Total factor: 0.33
- BL Factor: 23.5 T · m
- Effective Moving Mass: 180 g
- Equivalent Cas air load: 226 litres
- Effettive piston area: 0.113 m²
- Max. linear excursion (mathematical): 7.8 mm
- Voice - coil inductance @ 1kHz: 1.9 mH
- Half-space efficiency: 2.30%
Mounting information
- Overall Diameter: 460 mm / 18.5 inch
- Bolt Circle Diameter: 438 mm / 17.2 inch
- Bolt Hole Diameter: 8 mm / 0.3 inch
- Front Mount Baffle Cut-out: 416 mm / 16.4 inch
- Rear Mount Baffle Cut-out: 416 mm / 16.4 inch
- Depth: 209 mm / inch
- Volume occupied by the driver: 6.5 litres/ 0.23 ft³
- Net Weight: 14 kg / 31.1 lbs
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