Delta Dual 18" Passive Subwoofer 2000w RMS 18mm Birch Marine Plywood

BD218S

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Made from the finest 13 ply Marine Birch Plywood (with no air pockets) to ensure strength and density. The bass reflex port design enclosure is loaded with my BDP18 die-cast aluminium, high powered 18" sub frequency driver that utilizes our British Paper cones and extra cooling for better heat dissipation, high power handling capacity, and improved efficiency.

Key Features:

  • Passive Dual 18" bass-reflex PA subwoofer
  • 2000 watts RMS - 4000w Program - 8000w Peak
  • 134 dB maximum sound pressure level
  • Deep bass down to 32 Hz through 18" BDP18 custom design Woofer
  • Countersunk 3mm Extra Thick powder coated "ding proof" grille to prevent grill damage when on tour
  • Acoustic foam behind the grille to prevent moisture and dust ingression
  • 4 x Steel Handles
  • Can be used horizontally or vertically
  • 18 mm plywood cabinet with extremely durable 4 process polyurea coating
  • Easy handling through 8 ergonomic handles and stacking dimples
  • Shock-resistant front grille to protect the loudspeaker.

Finished in a highly durable polymer 4 - coat process of scratch-proof black paint, the cabinet is constructed from 18 mm (¾ ") birch marine plywood and includes a thick powder-coated perforated steel mesh grille backed with reticulated foam, and strategically placed carry handles for easy transport.

With a stunning throw and 134 Max SPL, this is the sub for touring large outdoor gigs or installing in a club where punchy bass is paramount.

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

How do we do this price?

On paper, the first reaction is these can't be any good as they are too cheap! Join the many thousands of other PA Professionals who have taken the leap of faith, purchased PA speakers from BishopSound and left us a 5* reviews. Simply put we remove all the unnecessary overheads and supply direct.

Delivering that superb British tone that we are known for, you will never be disappointed. Live bands love these speakers as they deliver such a broad range which is especially important when the competition for BBC introducing recognition is fierce. Music must be heard in its entirety!

For an in-depth overview of its primary features reach out to me on LiveChat to discuss this product.

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.

BD218

  • Height (mm): 600
  • Width (mm): 1220
  • Depth (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: 134 dB peak
  • Peak Music Power (W): 8000
  • Power RMS (W): 2000
  • Countersunk Extra Tick "ding proof" grille to prevent grill damage when on tour
  • Acoustic foam behind the grille to prevent moisture and dust ingression
  • 4 x Steel Handles
  • BDP18 Drivers Made By BishopsSound with British Paper Cones
  • Gross Weight (kg): 82
  • One-piece on a pallet

BISHOPSOUND BDP18 SUB BASS WOOFER 18″ 1000W RMS

GENERAL CHARACTERISTICS

  • Nominal Overall Diameter: 460 mm
  • Nominal Voice Coil Diameter: 100 mm
  • Magnet Weight: 125 OZ
  • Flux Density: 1.42 T
  • Weight: 11.2 Kg

THIELE-SMALL PARAMETERS

  • Voice Coil DC Resistance Re 5.6 Ω
  • Resonance Frequency Fs 34.8 Hz
  • Mechanical Q Factor Qms 11.48
  • Electrical Q Factor Qes 0.57
  • Total Q Factor Qts 0.543
  • Mechanical Moving Mass Mms 202.6 g
  • Mechanical Compliance Cms 103.05 um/N
  • Force Factor BL 20.87 Wb/m
  • Equivalent Acoustic Volume Vas 219.7 It.
  • Maximum Linear Displacement Xmax ±7 mm
  • Reference Efficiency ηo 1.575 %
  • Diaphragm Area Sd 122.54 Cm2
  • Losses Electrical Resistance Res Ω
  • Voice Coil Inductance@ 1K Hz LE m H

 ELECTRICAL CHARACTERISTICS

  • Nominal Impedance 8 Ω
  • Musical Power 2000 W
  • Rated Power 1000 W
  • Sensitivity@1W/1m 95 d B

 CONSTRUCTION CHARACTERISTICS

  • Magnet Ferrite
  • Voice Coil Winding Copper
  • Voice Coil Former Kapton
  • Cone Paper - Made In England
  • Surround Treated Cloth
  • Dust Dome Paper
  • Basket Die-Cast Aluminium


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 andrew@bishopsound.com or victoria@bishopsound.com.

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