Delta 18" Birch Plywood Passive 1000w RMS Touring Grade Subwoofer

BD118S

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£399Incl. VAT £499Incl. VAT

100% 18mm 13 ply Birch Marine Plywood - 1000w RMS!

Each passive cabinet delivers 1000w RMS (4000w Peak) at 8 Ohm and goes down to 37 Hz - with a max SPL of 134dB. We make the cast alloy 1kw driver so we control the performance of this subwoofer to perfection!

The Delta 18″ Subwoofer we believe provides the tightest and most defined bass frequency response available in the UK today. We make the box and the driver and the driver is the BDP18, probably the most reliable 18" cast alloy driver in the UK today with over 5000 pieces sold and only 6 have come back for a re-cone.

The cabinet is finished in 4 coats of Heavy Duty black splatter PU paint it will withstand all the knocks and scrapes gathered through touring. The box has been tuned to perfection after 30 years of manufacture and it sounds as punchy and stomach punchy today as it ever did! No crossover is fitted in the box as all users should use a speaker management processor.

Join hundreds of delighted touring companies, live bands, Dj's, Club Installers and houses of worship in celebrating the sound from this subwoofer.

Glastonbury Festival used these boxes in 2019 to great acclaim!

Be it On-Tour, a Nightclub or House of Worship, the low-frequency response will move the audience during reproduction of the spoken word, recorded and live music.

Be it Abide with Me, Boogie Wonderland or Jamming Punchy bass rhythms have never sounded so good!

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.


  • 18mm 13 ply Marine Birch Plywood Cabinet
  • Covered with 4 coats of BishopSound PU heavy-duty chip-proof paint
  • Extra Thick ding proof metal grill
  • Acoustic Foam Behind Grill to Prevent Water and Dust Ingression
  • System Type 18" Passive (Subwoofer)
  • Loaded with BishopSound BDP18
  • Frequency Range 34~150 Hz
  • Impedance 8 OHM
  • Power RMS (W) 1000
  • Power PROG (W) 2000 (4000w Peak)
  • LF (Power/Sensitivity) 1000w/134dB
  • Max SPL (dB) 134dB
  • Cross over (Hz) +/-100hz
  • Connection 4 Pole connector x 2 (in and out)
  • Water-resistant Speakon upload backplate
  • Cabinet size 58*67*73 cm
  • Carton size 63*72*78 cm
  • Product Weight 42Kg
  • Top Hat 20mm threaded Inverted in top of the cabinet for pole mount
  • 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

 

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.

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