Gamma 8" Passive 150w RMS 8 Ohm Poly-Carbonate Installation Speaker


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This 2 way Gamma 8", probably one of the sweetest yet clearest sounding full-range cabinets we have ever made.

Remember, today 90% of live outdoor gigs like Glastonbury use arrays of 8" speakers with 18" subwoofers. Never underestimate the performance and value of an 8" speaker!

Created and Voiced by Andrew Bishop personally to deliver a warm friendly sound at any volume level. When it comes to reproducing music or the spoken word we strive for quality and perfect definition across every frequency between 40Hz and 20kHz.

Key Features:

  • Countersunk Extra Tick "ding proof" grille to prevent grill damage
  • Acoustic foam behind the grille to prevent moisture and dust ingression
  • 35 mm Top Hat with gripping bolt
  • 25 mm Resin Film Tweeter Fitted
  • Onboard crossover.
  • Easy Lift top and side handles
  • 150w RMS - 70Hz to 20KHz - 118dB SPL!
  • 2*NL4 speakon in and out
  • Multiple fixing points
  • Only 8.5kg each
  • Waterproof covers available

Delivering a superbly flat response across the key frequencies if you want perfect sound at an affordable price you have found precisely what you are looking for.

Installation clients tell me these are worth twice the price I am asking but my mission is to bring high-quality sounding speakers at an affordable price.

Allegedly, the cockpit canopy of the Lockheed Martin F-22 Raptor jet fighter is made from a piece of high-quality polycarbonate. So if you are looking for durability and rigidity in your speaker enclosure choose the BishopSound Gamma series.

  • We manufacture this injection moulded polycarbonate speaker for easy fitting indoor or outdoor use. We add extra UV protection to avoid the cabinet fading in the summer sunshine.

  • For installation, the Gamma Series in its 6" 8" and 10" formats give you all the weather protection and the best of British full-range very sweet sound.

  • Rated PowerMinmum 150w RMS
  • 300w Program
  • 600w Peak
  • 25mm Resin Film Tweeter
  • Horn Dispersion 90 x 60 degrees
  • Lf Driver BishopSound 30 oz magnet with 1.5 inch Voice Coil
  • Connectors: Inputs Speakon in and out
  • Impedance 8 ohm
  • Weight 8.5kg
  • Fitted with BishopSound BSP8 Driver
  • Speaker Dimensions 31cm x 28cm x 43cm
  • Countersunk Extra Tick "ding proof" grille to prevent grill damage
  • Acoustic foam behind the grille to prevent moisture and dust regression
  • 35 mm Top Hat with gripping bolt
  • Easy Lift top and side handles
  • Full set of spare parts always in stock
  • 70Hz to 20KHz
  • 118dB SPL!
  • 2*NL4 speakon in and out
  • Multiple fixing points


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 or

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

    Our PA helpline is open between 10am and 6pm Monday to Friday on +44(0)1765 698233

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