1.35 Compression Driver 70w RMS 8 Ohm - BRC135


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1.35 Compression Driver 8 ohm Professional HF Unit

The BRC135 high-quality compression driver made from professional grade materials and feature a Kapton voice coil and titanium diaphragm. Perfect partners for both high power, two and three-way systems.

Key Features:

  • Titanium Dome - British Design - UK Stock - Fast Delivery!
  • Extremely high-quality 8-ohm Titanium domed HF Driver
  • 1⅜" x 18TPI Thread
  • 100dB SPL
  • High Compliance Response:1.5K-20KHZ
  • Terminals: Colour coded sprung loaded press/release
  • 34.4 mm Voice Coil
  • Program power 140W above 1.2 kHz
  • External diameter 120 mm Depth 75 mm
  • Mounting 34mm 1 3/8" Screw Thread
  • Net weight 1kg
  • Magnet Ferrite with 'easy to replace' diaphragm
  • The minimum impedance of 5.2 ohm
  • Suggested crossover frequency 1 kHz or higher (12dB/oct min slope)
  • Spare Diaphragms stocked if you have an accident

This HF Driver Fits The Following Cabinets:

  • Peavey (Not Peavey Pro15)
  • JBL
  • D&B
  • Turbosound
  • HK
  • NEXO
  • FANE
  • Celestion
  • Carlsbro
  • EV
  • RCF
  • FBT
  • Adam Hall
  • Alto (some models)
  • Plus Many More - contact us for details

Manufactured in Taiwan in conjunction with our USA partners. This is a very reliable and superb sounding compression driver.

Unlike other HF units if a spike such as an amplifier component failure or excessive feedback kills the driver we sell low-cost replacement diaphragms.


  • Nominal Overall Diameter 90 mm
  • Nominal Impedance 8 ½
  • Nominal Voice Coil Diameter 34.4 mm
  • RMS Power 70 W
  • Magnet Weight <350g
  • Flux Density 0.75 T
  • Sensitivity@1W/1m 106 dB
  • Weight 32 Ounces or 907.185 gram
  • 35mm Thread


  • Voice Coil DC Resistance Re 6.2 ½
  • Resonance Frequency Fs 1300 Hz


  • Magnet Ferrite
  • Voice Coil Winding CCAW
  • Voice Coil Former Kapton
  • Voice Coil Winding
  • Height 2.4 mm
  • Diaphragm: Titanium
  • Air Gap Height 5 mm
  • Ferrofluid in Air Gap: No
  • Throat Diameter 25mm

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 andrew@bishopsound.com or victoria@bishopsound.com.

    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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