Delta TurboCharged Dual 18" Plywood SubWoofer 18mm Birch Plywood Passive PA Speaker 3000w RMS - 138dB


Rated 5.0 out of 5
Based on 1 review

Buy Now Pay Later, or pay just £299.66 over 3 payments with Klarna Payment Badge

Or only £299.66 p/m over 3 months with - Learn more

£899Excl. VAT
Earn 4495 Sound Points!

The positive feedback from customers who purchased this twin 18 speaker is overwhelming. This Turbocharged version of the BD218S - This is loaded with 2 x BPW18 Delivering a cumulative Program Power Rating of 6000 watts.

Made in Ripon, North Yorkshire, the delivery time is 14 days from the time of order.

Based on early Turbosound cabinets but improved by our engineers this 18" subwoofer is perfect for touring on permanent fixed installation. 

This long throw cabinet has extra thick acoustic wadding inside and foam behind the extra thick ding proof grille to prevent dust and moisture ingression.

Finished in highly durable quadruple layers of PU polymer coats of scratch-proof black paint, the cabinet is constructed from 18 mm 13 ply marine birch plywood and includes a thick powder-coated perforated steel mesh grille backed with reticulated foam, and 4 strategically placed carry handles for easy transport.

The rear panel connector upward water-resistant backplate carries 2 Neutrik Speakon NL4 connectors.


  • Front-loaded dual 18" Professional PA subwoofer
  • Fitted with two 1500w 8 ohms BWP18
  • Two durable handles for easy lifting and carrying
  • Ideal for FOH, side and drum fill applications
  • Rubber feet and top feet locators for easy stacking
  • Low distortion bass reflex port design
  • Upward facing in and out Speakon Sockets to Stop Water Ingression
  • Countersunk Extra Tick "ding proof" grille to prevent grill damage when on tour
  • Acoustic foam behind the grille to prevent moisture and dust ingression
  • Rugged powder-coated perforated steel mesh grille
  • Dual in/out Neutrik Speakon NL4 connectors for reliability
  • 18 mm (3/4 inch) birch plywood enclosure with hard wearing triple coatings of our polymer-based black paint finish
  • Loaded with two of my BWP18 - 18-inch low-frequency drivers with inside/outside wound coil
  • Wheels are available. See Heavy Duty Swivel Braked Locking PA Speaker Castor Wheel 4 inch 100mm – BishopSound


  • Depth (mm): 600
  • Height (mm): 1220
  • Width (mm): 820
  • Net weight (kg): 79
  • Connector: 2 x Neutrik Speakon NL4 - In and Out
  • Frequency Response (Hz): 33 Hz - 200Hz å±3 dB, 27 Hz - 200 Hz -10 dB
  • Impedance (Ohms): 4 Ohms
  • Maximum SPL: 138 dB peak
  • Peak Music Power (W): 12000
  • Program Power (W): 6000
  • Power RMS (W): 3000
  • Sensitivity (dBV/Pa): 100 dB
  • Gross Weight (kg): 82
  • One-piece on a pallet

BishopSound is B2B. We design, manufacture and sell directly to you.

Enjoy the punchy tight LONG THROW bass and tour the UK with the Best of British Dual 18" Subwoofers.

Important information about subwoofers

Subwoofers are designed to reproduce low bass audio signals between 30Hz and 150Hz. Driving them with full frequencies will cause permanent damage, so they should only be operated with a passive low-pass filter, a crossover network, or an active electronic crossover or speaker management system.

Please go to my blog section to learn more about driving subwoofers safely.

  • Depth (mm): 600
  • Height (mm): 1220
  • Width (mm): 820
  • Net weight (kg): 79
  • Pre-Drilled and bolted wheel points
  • Connector: 2 x Neutrik Speakon NL4 - In and Out
  • Frequency Response (Hz): 33 Hz - 200Hz å±3 dB, 27 Hz - 200 Hz -10 dB
  • Impedance (Ohms): 4 Ohms
  • Maximum SPL: 138 dB peak
  • Peak Music Power (W): 6400
  • Power RMS (W): 1600
  • Sensitivity (dBV/Pa): 100 dB
  • Gross Weight (kg): 82
  • One-piece on a pallet

This speaker is fitted with 2 x BishopSound BWP18 See 18" 1500w RMS 8 or 4 Ohm Subwoofer Bass Speaker Cast Alloy Driver With – BishopSound 

      average rating 5.0 out of 5
      Based on 1 review
      • 5 Stars
        1 Review
      • 4 Stars
        0 Reviews
      • 3 Stars
        0 Reviews
      • 2 Stars
        0 Reviews
      • 1 Star
        0 Reviews
      100% of reviewers would recommend this product to a friend
      Review posted
      Reviewed by Thunder D., from United Kingdom
      Verified Reviewer
      Age Range
      35 - 44
      Customer Type
      Audio Professional
      Customer Service
      Went Above & Beyond
      Value For Money
      Rated 5 out of 5


      These are Very nice and deep sounding bass bins!! Well made and comes with proper wheels, The 3000w RMS is True power as we had so many positive feedback on our event and we only had them on half power well worth the money - good priced as always from BishopSound :)

      Needs two people to carry but once on wheels very easy to move around.

      I am very happy with them and if I had the space would order another two!

      Thank you BishopSound!

      I recommend this product
      Was this helpful?

      BishopSound Limited Lifetime Guarantee

      Effective on all purchases from 1st January 2021

      With a returns rate of less than 1% we are proud to offer the BishopSound Lifetime Guarantee at no extra cost to you

      BishopSound Limited will undertake to guarantee the product will be free from defective workmanship and materials for the reasonable life of the product.

      What is covered in the guarantee?

      BishopSound Limited will at its discretion and expense either repair the defect using new or refurbished parts, or replace the Product with a new or re-manufactured Product of a reasonable equivalent. In all instances BishopSound Limited’s liability will not exceed the original Purchase Price.

      What is not covered with the guarantee?

      If we find a genuine fault or defect in your item that shouldn’t be there based on normal use, then we’ll repair or replace it for free– no questions asked. But, if that speaker has been unloved or beaten to within an inch of its life, then it might be time to buy a new one! In any case, we’ll review each case and will let you know if we can fix or replace it.

      The warranty stated above is the sole and exclusive remedy and BishopSound Limited’s performance shall constitute full and final satisfaction of all obligations, liabilities and claims with respect to the Product. In any event, BishopSound Limited shall not be liable for and consequential, incidental, economic, property, bodily injury or personal injury damage arising from the product, any breach of the warranty or otherwise.

      This Warranty applies to the first end-user purchaser, and only when purchased from BishopSound Direct or an authorized BishopSound Limited Dealer/Distributor on the UK Mainland listed on our website.

      Additional Limitations and Exclusions from Warranty Coverage: The warranty described above is non-transferable, applies only to the Product purchased, does not include installation of any repaired or replaced Product, does not include damage to any allied or associated equipment which may result for any reason from use with this Product, and does not include labour or parts caused by accident, disaster, negligence, improper installation, broken warranty seals, misuse (e.g. over driving the amplifier or speaker, unstable, unprotected or badly earthed power sources, excessive heat or cold or humidity or inadequate ventilation), or from service or repair which has not been authorized by BishopSound Limited.

      The end-user purchaser is liable for the cost of transportation and return of the Product in the original packaging. Any damages incurred during transport are the cost and responsibility of the end-user purchaser.

      When purchasing BishopSound Limited products, please keep your receipt of purchase safe and retain all the original packaging, as this validates your warranty.

      How To Claim

      To qualify for the Lifetime warranty, in the first instance you must contact BishopSound Limited showing proof of purchase and the product code. You must be in possession of the original packing as this has the Serial Number printed on it. You will be asked for the serial number and given a return authorization number (RAN), which is required to progress with your warranty claim.

      Any decision made by BishopSound Limited regarding any Lifetime Warranty claim is full and final.

      How long is the product covered for?

      To help give you an idea of our expected product lifetimes we’ve built a guidance table.

      If no proof of purchase available product lifetime will be measured on date of manufacture.

      Active Speakers - 5 years

      Passive Speakers - 6 years

      Power Amplifiers - 6 years

      This warranty takes effect from the 1st January 2021 onward. Goods purchased prior to this date were sold with the 12 month warranty which still stands.

      Only branded BishopSound Limited Products are included in the Lifetime Guarantee:

      For more information, please see our Terms & Conditions

        Get in touch with BishopSound today for professional and friendly advice. If you want to send a direct email please use or

        If you have a question for Andrew use this form or Live Chat for a fast reply.