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RCF L18P300 18" Replacement Woofer
Product #50518 | SKU 11185016
Availability on Request
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RCF L18P300 18" Replacement Woofer

Product #50518 | SKU 11185016
Availability on Request

With 15mm thick plates and specially designed suspensions
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Product Details
  • Product: #50518
  • SKU: 11185016
Not currently for sale
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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.


  • 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


  • 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.


General Specifications
Nominal Diameter 460 / 18 mm/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 / 15 mm/inch
Max Excursion Before Damage (peak to peak) 40 / 1.6 mm/inch
Minimum Impedance 6.0 O
Voice Coil Diameter 100 / 4 mm/inch
Voice Coil Material Copper
Voice Coil Winding Depth 23 / 0.9 mm/inch
Number of layers inside / outside
Kind of layer 2
Top Plate Thickness 15 / 0.6 mm/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 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 / 18.5 mm/inch
Bolt Circle Diameter 438 / 17.2 mm/inch
Bolt Hole Diameter 8 / 0.3 mm/inch
Front Mount Baffle Cut-out 416 / 16.4 mm/inch
Rear Mount Baffle Cut-out 416 / 16.4 mm/inch
Depth 209 / mm/inch
Volume occupied by the driver 6.5 / 0.23 liters/ft³
Net Weight 14 / 31.1 kg/lbs

Australian Shipping Via DHL
DHL offers a great express shipping service to Australia from New Zealand. We are proud to be able to offer express shipping to main cities on the east coast of Australia, within the same timeframe ( If not quicker ) than local Australian courier companies. Prior to the Covid-19 outbreak, service standards for these main centers was overnight. However these services have been impacted greatly, and as such the overnight service has been suspended. Overnight shipping will likely resume once things have returned to normal.

Qualifying main centers include:

  • Brisbane
  • Sydney
  • Adelaide

Whilst this service is extremely efficient and will likely be delivered within 1-2 days 99.9% of the time, it cannot be guaranteed. In the case where something were to go wrong with your delivery and it doesn’t arrive within the specified time frame, in most cases it will be delivered by the next day.

While not all major cities are eligible for overnight delivery, they still benefit from this great service. Other centers throughout Australia will have a typical delivery ETA of 2-4 days. (Excluding rural delivery address where this ETA can be extended to an additional three or more days).

If you require urgent shipping and you don’t reside in one of the cities stated above, please contact us and we can find a solution that works best for you.

Please Note: Shipping via DHL is not available to PO boxes and/ or parcel boxes etc.


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  • Product: RCF L18P300 18" Replacement Woofer
  • Manufacturer: RCF
  • Model: 11185016
  • SKU: 11185016
  • RM Product #: 50518