Premier 18″ 1000w RMS 8Ω Professional Chassis Driver

Premier 18″ 1000w RMS 8Ω Professional Sub Bass Speaker

FREE DELIVERY UK MAINLAND

We are a small British Company with Limited Production Facilities and struggle to keep up with demand for these excellent drivers. We used to own Carlsbro Sound. Please call 01765 698233 for help and advice.

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

This 18″ Sub Speaker is ideal for use in vocal PA, keyboards, club systems and earth shaking subwoofers


Bishopsound SUB BASS 18″

Bishopsound NumberBDP18
Impedance8 ohm
RMS1000
PROG2000
PEAK4000
Voice Coil Inches4
Magnet Weight Ounces125
Sensitivity dB 1w/1m97
ColourBlack
Frequency Response High2KHz
Frequency Response Low36Hz
Kapton Y/NYes
Moving Mass inc Air Load200
Effective Piston Diameter390
Flux Density1.05T
Magnetic Gap Depth10
Coil Winding Height24mm
Weight Kg13
Individual Carton Dimensions51x51x27
CBM0.07
Overall Diameter460
Width Across Flats22
Flange Height16
Baffle Hole Diameter440
Gasket SuppliedEVA
Recommended Enclosure Volume250 dm3
Former MaterialKapton
Voice Coil MaterialCopper
Magnet MaterialFerrite
Chassis MaterialAlu
Cone MaterialPaper
Dust Dome MaterialPaper
Connector TypeWiring pillar

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

Constructive Characteristics

  • Magnet Ferrite
  • Voice Coil Winding Copper
  • Voice Coil Former Kapton
  • Cone Paper
  • Surround Treated Cloth
  • Dust Dome Paper
  • Basket Diecasting Aluminium
Type12″
Bishopsound NumberBDP12
Impedance8 Ohm
RMS400
PROG800
PEAK1600
Voice Coil Inches3
Magnet Weight Ounces80
Sensitivity dB 1w/1m97
ColourBlack
Frequency Response High3.5KHz
Frequency Response Low45Hz
Kapton Y/NYes
Moving Mass inc Air Load50
Effective Piston Diameter260
Flux Density1.0T
Magnetic Gap Depth10
Coil Winding Height16mm
Weight Kg6
Individual Carton Dimensions33x33x17
CBM0.019
Overall Diameter312
Width Across Flats18
Flange Height16
Baffle Hole Diameter295mm
Gasket SuppliedEVA
Recommended Enclosure Volume80dm3
Former MaterialKapton
Voice Coil MaterialCopper
Magnet MaterialFerrite
Chassis MaterialAlu
Cone MaterialPaper
Dust Dome MaterialPaper



When buying replacement woofers "you get what you pay for".

At Bishopsound we know you can buy cheap speakers on ebay but we do not advise you use them.

The better the stand the safer your event - We recommend you use our replacement speakers

Thank you for looking at our speakers. Andrew Bishop was the owner of Carlsbro and started Bishopsound when he sold Carlsbro to a Chinese buyer and they stopped making PA.

Today Bishopsound manufactures and sells PA all over the world. We maintain the 50 year Carlsbro ethos. Great quality, reliable, durable, speakers, amplifiers and stands at an affordable price.

We are based in Yorkshire, England. We will always answer any questions and take care of you with a personal service.

Therefore - Buy with confidence as our Speakers are used by Bands, Duos, Live Music, PA, Mobile DJ's, Clubs, Schools and everyone who wants to make themselves heard.



Any Questions?

Buy with confidence and call John directly on 07966 133139  if you have any questions.

We are PA experts and would be pleased to help you.