18" Replacement Speaker Subwoofer Bass Driver 1500W RMS 8 OHM - BWP18


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£179Incl. VAT Our Price
£199Incl. VAT Typically This represents the average price across other brands that offer the same level of functionality and features as this product

We hand make these in carefully controlled batches of 50 to maintain quality and reliability. This is our fastest selling driver.

Our fastest selling driver as it is deployed in other makers cabinets. More than often improving the sound quality and saving money on expensive branded replacement parts. 

We aim to carry stock 365 days a year but demand is greater than our ability to hand build the BWP18 and we are not able to increase production at this time.

We cannot offer or promise next day delivery. Please allow up yo 7 working days for delivery.

Powerful and proven in many different cabinet designs and classed by curly professional speaker cabinet designers as a superb cost-effective solution that does not break the budget. We load this driver in all our UK built sub-woofers as we need power and reliability.

Many compare this driver to the PD1850 but mine runs colder due to extra cooling and it is designed to outperform its rivals.

The Premium Series are high-quality PA speakers using a Cast chassis. Made from professional grade materials the Premium Series features Kapton coils, ferrite magnets, BRITISH paper cones with rolled cloth edge and push terminals.

All blacked up by our personal no quibble guarantee. If you break one and it's our fault, I will replace it Free of Charge. P.S. Not replaced for re-coned one yet!

This 18" Sub Speaker is ideal for use in Touring, club systems and when your customers want earth-shaking subwoofers

Key Features

Nominal Diameter 460 mm / 18"

  • Cast Aluminium Basket
  • British Paper Cone
  • Stainless Steel Press Terminals
  • Additional cooling
  • Voice Coil Diameter 125 mm / 5.0"
  • Nominal Impedance 8 Ω
  • Power Rating 1500 w (A.E.S.)
  • Sensitivity (1w / 1m) 100 dB
  • Frequency Range 35 Hz - 2 kHz
  • Voice Coil Winding Depth 32 mm
  • Magnet Depth 280mm x 140mm x 25 mm - 20 Ounce

See detailed specifications in the Technical Tab in this listing.

  • Nominal Diameter 460 mm / 18"
  • Voice Coil Diameter 125 mm / 5.0"
  • Nominal Impedance 8 ohm
  • Available In 4 ohm / 8 ohm / 16 ohm
  • Power Rating 1500 w (A.E.S.)
  • Sensitivity (1w / 1m) 100 dB
  • Frequency Range 35 Hz - 2 kHz
  • Recommended Enclosure Volume 90 - 220 Litres
  • Resonance 32 Hz
  • Voice Coil Winding Depth 32 mm
  • Magnet Depth 280mm x 140mm x 25 mm - 200 Ounce
  • Magnet Material Ceramic
  • Voice Coil Material Copper
  • Former Material Glass Fibre
  • Dust Dome Material British Paper
  • Suspension Material Fabric
  • Cone Surround Material British Paper / Fabric

Thiele Small Parameters:

  • Fs 32 Hz
  • Re 5.4 ½
  • Qms 9.743
  • Qts 0.38-
  • Vas 163.1 litres
  • Mms 248 g
  • Sd 1244 cm2
  • BL 30.3 T/m
  • Xmax 11 mm
  • Ref. Efficiency 2.07%

Mounting Data:

  • Overall Diameter = 465mm
  • Bolt Hole = 7mm
  • Mounting Hole Diameter = 422mm
  • Depth = 211mm
  • Net Weight = 17kg
  • Shipping Weight = 18kg
  • Carton Dims = 57 x 57 x 26 cm


Your Guarantee is for 12 months and starts from delivery date but please read on. The warranty is recorded with the BishopSound Order number which begins with a B. Please download and keep a copy of your invoice and keep it safe.

We know problems can occur from time to time so even after 1 year I am here to help. We carry parts and we treat everyone as we expect to be treated ourselves so we will work hard to get a win win.

We still help people who bought from us at Carlsbro 30 years ago with parts (if they are available) repairs and solutions. BishopSound prides itself on treating every customer as a family friend.

In short if the problem was caused by me its up to me to fix it. If you had an accident then I will try my hardest to fix it at little or no cost to you. This guarantee is in addition to, and does not affect your statutory rights or the other right of consumer purchases.

For more information, please see our Terms & Conditions

    Get in touch with BishopSound today for professional and friendly advice. Alternatively, you can call us on 01765 698 233 or 07973 223949. If you want to send a direct email please use andrew@bishopsound.com or victoria@bishopsound.com.

    If you have a question use this form or Live Chat and if you're interested in becoming an official distributor of BishopSound products, please get in touch below.