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.
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.

4″, 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.

Nominal Diameter: 460 / 18.

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″.

Max Excursion Before Damage (peak to peak): 40 mm/ 1.6″.

Minimum Impedance: 6.0 O.

Voice Coil Diameter: 100 / 4.

Voice Coil Material: Copper.

Voice Coil Winding Depth: 23 mm/ 0.9″.

Number of layers: inside / outside.

Kind of layer: 2.

Top Plate Thickness: 15 mm/ 0.6″.

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 liters.

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: 470 mm/ 18.5″.

Bolt Circle Diameter: 438 mm/ 17.2″.

Bolt Hole Diameter: 8 mm/ 0.3″.

Fro