Big Gig Rig 36 - Active 2500w RMS 15" Alpha Tops and 18" Subwoofer PA System With Bluetooth


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£1,199Incl. VAT

This fully Active System is made up of Alpha and Delta speakers and needs no further amplification - Plug and Play:

2 x Alpha 15" 1000w Peak Active Tops with Bluetooth

2 x Delta 18" 1000w RMS Active Subwoofers

2 x 35mm M20 Screw-in Telescopic Speaker Poles

A perfect system for 250 people with full-range tops and thumping bass. You can use the tops without the subwoofers for smaller gatherings.

When the full system is running simply dial all the bass out of the 15" active cabs and let the subwoofers do the business for the low end. This makes the top speakers much more efficient.

BA115A - Summary

The amplifier is built in so you do not need an external amplifier. Ideal for a whole host of uses these 15" active cabinets kick! Delivering over125dB of full-range sound.

Bluetooth means you can run this from any mobile device.

Active and Sonically perfect with Bluetooth and a 1.75 BRC175 Titanium 44mm HF Unit. This great-sounding, low cost (not cheap) PA speaker is tuned to give out an amazing sound and a perfect start on the road or get you more work!

A reminder that there are no middlemen and we manufacture EVERYTHING, grills, drivers, amplifier modules, cabinets, and software and pass on all the savings to you. Many people will never understand how we make such great sounding speakers and deliver them as such a low price. If you need to know more call us.

We make a PA product that lasts, and carry spares in our R&D unit in Ripon, North Yorkshire!

With metal protective corners and protective padded covers available we have included high-quality components (made by us) and have covered the cabinet in the tough scratch-proof carpet as its easier to maintain than painted speakers and saves money.

Key Features

  • 1000w Peak 500w Program 250w RMS
  • Bluetooth enabled
  • Fused IEC 60320 C13 Socket (13 amp Mains Cable Provided)
  • 35mm Top Hat so it can go on a stand
  • Strong Metal Grill and corners
  • BishopSound 15" BishopSound driver with British Paper Cone
  • High-Quality BRC175 1.75mm Titanium HF unit (not a cheap Piezo tweeter)
  • Only 23 Kg
  • Trapezoidal cabinet with polycarbonate flared horn
  • Super Tough Jet Black Easy Clean Carpet Covering

BD118AS Summary

The 1000w RMS BD118AS delivers a minimum of 135dB SPL and has a frequency range of between 30Hz and 300Hz.

This British Designed Subwoofer delivers that signature clarity and that tight punchy bass that is the essence of BishopSound.

The single 18" powered subwoofer incorporates the hugely sought after BDP18 1000w RMS cast alloy driver designed and engineered in the UK. The BDP18 has sales of over 1000 units and no re-cone kits have been needed (even though we carry them in stock).

Two simple, uncomplicated potentiometers on the rear panel control the volume and low pass filter.

Channel A and Channel B can be fed by XLR or 1/4" jack combi socket and a link out allows you to feed the original signal to multiple active subwoofers or mid/top range active cabinets.

A major benefit of Bishopsound Active Subwoofer Range is the Genuine Neutrik PowerCON IN/OUT power feed. All too often mains IEC power leads are kicked out or fall out in the middle of a gig. Locking mains cables for ground-level BishopSound active professional subwoofers are essential.

The 20a rating of the powercon exceeds the current needed thereby delivering greater safety and reliability.

The powerCON is a locking 3 conductor equipment AC connector with contacts for line, neutral and pre-mating ground contact. It replaces appliance couplers (often referred to as kettle leads) wherever a very rugged solution in combination with a locking device is needed in order to guarantee a safe power connection. The powerCON is a connector without breaking capacity, i.e. the powerCON should not be connected or disconnected under load or live!

Key Features

  • Famous Low-Frequency BishopSound BDP18 Driver 18''
  • Amplifier Type: Class-D
  • Volume control on the rear
  • Frequency range control on the rear
  • Power Output: 1000W RMS
  • Frequency Range: 30Hz - 300Hz
  • Sound Pressure Level: 135dB Max SPL
  • Audio Inputs: XLR/JACK 1/4" Combi
  • PowerCON IN/OUT 1m Powercon cable is included
  • Trapezoidal, 18mm, 13-ply birch marine plywood 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


  • XLR Mic-in
  • Miv Volume
  • Master Volume
  • EQ Treble
  • EQ Bass
  • Power and Clip Light
  • XLR Line Out
  • XLR Line In
  • RCA In Left and Right
  • Line Volume 1
  • 1/4 jack In
  • Line Volume 2
  • Bluetooth
  • Fused IEC 60320 C13 Socket (13 amp Mains Cable Provided)
  • On-Off Switch
  • 35mm Top Hat so it can go on a stand
  • Strong Metal Grill
  • BishopSound 15" BishopSound driver with British Paper Cone
  • Metal Corners
  • High-Quality 1.34mm Titanium HF unit (not a cheap Piezo tweeter)
  • 48 x 47 x 79cm
  • 23 Kg
  • Trapezoidal cabinet
  • BRC175 Titanuim dome HF Compression driver
  • Super Tough Jet Black Carpet Covering

BD118AS - Active 1000w RMS Subwoofer

  • Fitted With BishopSound BDP18 Low-Frequency 18" Driver
  • Amplifier Type: Class-D
  • Power Output: RMS1000W
  • Frequency Range: 30Hz - 300Hz, -10dB
  • Frequency Response: 35Hz - 250Hz, å±3dB
  • Sound Pressure Level: 135dB @ 1m Max SPL
  • Audio Inputs: XLR/JACK 1/4" Combi
  • Input Sensitivity: +4dBu @ 0dB
  • Input Impedance: 12 kOhms Unbalanced / 24 kOhms Balanced
  • Thru Connectors: XLR
  • Output Impedance: 300 Ohms Unbalanced / 600 Ohms Balanced
  • High-Pass Filter: 100Hz, Butterworth, 18dB Slope
  • Level Control: 0 to +6dB
  • High Cut Control: 70Hz - 150Hz, Butterworth, 24dB Slope
  • Limiter: Optical
  • Power Supply: 220V - 240V, 50Hz/60Hz
  • Mains Connection: PowerCON IN/OUT
  • 1m Powercon cables are included
  • Dimensions: 58 x 67 x 73 cm
  • Weight: 44Kg
  • Trapezoidal, 18mm, 13-ply birch marine plywood 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


  • Nominal Overall Diameter: 460 mm
  • Nominal Voice Coil Diameter: 100 mm - 4 INCH
  • Magnet Weight: 125 OZ
  • Flux Density: 1.42 T
  • Weight: 11.2 Kg


  • 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


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


  • 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 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.

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