Beta 12" Trapezoidal 500w RMS 8 ohm Full Range PA Speaker


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The Beta 12" Speakers is perfect for all applications where you want a warm and crystal clear "British Tone".

The Beta BB112 can be used for:

  • Mobile Use
  • Monitoring
  • Home Cinema
  • Pub & Club Installs inside and outside
  • Worship Installation
  • Point Source FOH
  • Side Fill
  • Stage Monitoring

Key Features:

  • 500W (RMS) / 2000W (peak) power handling
  • British Designed BDP12 Cast Alloy Driver with a 3'' voice coil!
  • BRC175 Titanium domed crossover
  • Horn dispersion (60° x 90°)
  • Able to produce a maximum SPL of up to 128dB 
  • Rugged birch multiplex/MDF hybrid enclosure
  • Rigging Points: 10 x M8
  • 2mm metal grille backed with jet black acoustic foam behind
  • Acrylic enamel, black grille, and easy-grip handles
  • Countersunk Extra Tick "ding proof" grille to prevent grill damage when on tour
  • Acoustic foam behind the grille to prevent moisture and dust ingression
  • Weight 14kg

We have been making the Beta Speakers for over 30 years and the reason they are so popular is that you can hear every note. The bass mid and tops are all present in the correct balance.

    • This 12" speaker delivers the clarity demanded in an ultimate gigging system.

    • Offering incredible long throw and short-throw performance, BishopSound Beta 12"s deliver the stunning British sound quality and clarity from the front of the venue all the way to the back.

    • BishopSound is fast becoming the number 1 choice of PA for bands, DJs, rental companies, installations and more all over the world because of the superb sound and build quality and affordability.

    • We use our purpose-made BDP12 cast alloy main driver with its British Paper Cone and our BRC175 Titanium domed HF unit. You can see the full details of this in our driver's section on this site.

    • Experience the sensational British tone of the Trapezoidal Beta 12 Listen, feel the warmth and enjoy hearing every note projected with British precision.

    • Constructed using our own specification Danish MDF for the perfect balance of tone and weight. The super tough, 4 coat PU paint finish and thick metal grille protect the speaker.

    • The tone is British and designed for our music. Watch your customers sit up and listen to our amazing clarity of tone.

    • 500W (RMS) / 2000W (peak) power handling
    • British Designed 12''/1'' full range mid/high unit
    • Horn dispersion (60° x 90°)
    • 12'' low/mid speaker with a 3'' voice coil, and 1'' HF driver with a 1.75'' voice coil
    • Able to produce a maximum SPL of up to 128dB 
    • Rugged birch multiplex/MDF hybrid enclosure
    • RMS: 500W
    • Program: 1000W
    • Peak: 2000W
    • Nominal Impedance: 8 Ohms
    • Frequency Response: 50Hz - 20kHz
    • Protection Crossover fused with a lamp
    • Connections: 2 x SpeakON NL4 in and out
    • Pole Mount: 35mm
    • Rigging Points: 10 x M8
    • Handles: 2 x Steel
    • Enclosure: Hybrid (birch multiplex / MDF)
    • Grille: 2mm metal grille backed with black acoustic foam
    • Finish: Acrylic enamel, black
    • 12'', two-way, point source speaker
    • Max SPL 135dB peak
    • Trapezoidal, 18mm wooden enclosure
    • Countersunk Extra Tick "ding proof" grille to prevent grill damage when on tour
    • Acoustic foam behind the grille to prevent moisture and dust ingression
    • Weight = 14kg
    • Dimensions  = 35cm x 38cm x 59cm

    This cabinet contains our purpose-made BDP12 cast alloy woofer and BRC175 HF 100w RMS Titanium dome compression, driver.


    • Nominal Overall Diameter = 312 mm Nominal Impedance 8 Ω
    • Nominal Voice Coil Diameter = 75 mm Musical Power 600 W
    • Magnet Weight = 8 OZ Rated Power 400 W RMS
    • Flux Density = 1.2 T Sensitivity@1W/1m 95 d B
    • Weight = 6.3 Kg



    • Resonance Frequency = Fs 45.0 Hz
    • Mechanical Q Factor = Qms 10.91
    • Electrical Q Factor = Qes 0.52
    • Total Q Factor = Qts 0.48
    • Mechanical Moving Mass = Mms 72.34 g
    • Mechanical Compliance = Cms 92.1 um/N
    • Force Factor = BL 18.225 Wb/m
    • Equivalent Acoustic Volume = Vas 34.9 It.
    • Maximum Linear Displacement = Xmax ±3 mm
    • EBP = 140
    • Xlim = 18mm
    • Reference Efficiency = ηo 1.580 %
    • Diaphragm Area = Sd 90.1 Cm2
    • Losses Electrical Resistance = Res Ω
    • Voice Coil Inductance@ 1K Hz = LE m H


    • Magnet = Ferrite
    • Voice Coil Winding = Copper
    • Voice Coil Former = Kapton
    • Cone = Paper
    • Surround = Treated Cloth
    • Dust Dome = Paper
    • Basket = Diecast 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 or

      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.

      This Speaker is driven with...