1.75 Compression Driver 8 ohm Replacement Diaphragm 44.4mm Voice Coil


Rated 5.0 out of 5
Based on 11 reviews

This product is for pre-order, so there will be a longer lead time on deliveries. This product is expected to be available for dispatch from: Mar 01, 2022.

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$17Excl. VAT

Replacement diaphragm for 44.4mm 1.75 Compression driver 8 ohm Professional Compression Driver

This replacement diaphragm is for many brands such as our BRC Series high-quality compression driver made from professional grade materials and features Kapton voice coils and Titanium diaphragms. Perfect partners for both high power, two and three-way systems.

If you've blown your compression driver, this is the replacement part you need to make it work again - you don't have to replace the whole unit.

Key Features:

  • This replacement diaphragm will fit other makers compression drivers
  • Voice Coil 44.4mm
  • Fits the BishopSound BRC175 and many others
  • Sprung Terminals
  • Please keep one as a spare in your workshop/toolbox
  • Outside Diameter of ring 70mm
  • Width at the widest point 106mm

Also known to be compatible with the following drivers.

  • American Audio BMD450 B-52 MX-1515, B52 MX-1515, B-52 MX1515, B52 MX1515
  • Behringer 44P60A8 44T30D8 44P60A8 44T60C8
  • Cerwin Vega Pro Stax PSX153, PSX253
  • DAP PSR-15A
  • EAW VR51 (EAW DC10/1703-8)
  • Mackie DC10/1701-8, DC10/1801-8, Mackie SRM 450, Mackie C300Z, S215, S225, SA1521, SR1521Z, SR1522Z, Mackie HD1531
  • Mackie P/N 0008093, 0025666 Driver - Mackie 0025726
  • Mr. DJ PRO8000,
  • Gemini GX400, GX450,
  • P-Audio BM-D440, BM-D450, BM10 CXA, BM12 CXA, BM12 CXHA, BM15 CXA, BM15 CXHA, SD-44BF
  • Peavey 175T, PRO 12 (8 or 4 Ohm cabinets), PRO 15 (8 or 4 Ohm cabinets)
  • Turbosound RD111, CD111, TXD121, TXD12M, TXD151
  • Warrior Audio Prolight 400

The BRC Series is a high-quality compression driver made from professional grade materials and features Kapton voice coils and Titanium diaphragms. Perfect partners for both high power, two and three-way systems.

Spikes from amps, loud HF feedback, and some intense high-frequency tracks will are all prone to overwhelm the protection built into the crossover and blow it so a replacement diaphragm is needed.

This 44.4mm Voice Coil compression driver replacement diaphragm will fit many other makes of compression drivers such as B&C, Peavey and Martin Audio. Just check the dimensions.


  • Nominal Overall Diameter 106 mm x 70mm Nominal Impedance 8 ½
  • Nominal Voice Coil Diameter 44.4 mm
  • Magnet Weight 582 g
  • Flux Density 1.3 T Sensitivity@1W/1m 106 d B
  • Weight 1.7 Kg


  • Voice Coil DC Resistance Re 6.2 ohm
  • Resonance Frequency Fs 1200 Hz


  • Magnet Ferrite
  • Voice Coil Winding CCAW
  • Voice Coil Former Kapton
  • Voice Coil Winding Height 2.4 mm
  • Diaphragm Titanium
  • Air Gap Height 6mm
  • Ferrofluid in Air Gap No
  • Throat Diameter 25 mm
average rating 5.0 out of 5
Based on 11 reviews
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11 Reviews
Reviewed by Frank F.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

Fantastic wonderful brilliant - Quality product

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Reviewed by Freddy B.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

I bought two of theses units recently and can say I was very impressed with built quality and their crisp, bright and undistorted performance when I drove them with my system.

Would highly recommend theses units, especially at the price!!!

Excellent customer support....

Andrew was a great help in answering my queries regarding theses units

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Reviewed by Cris m.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

Serious bit of kit (extraordinary for the price) very high output (my main drivers struggle to keep up) This company should be very proud - excellent product and service Thank you Bishopsound

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Reviewed by jamie c.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

Sounds great, much better than the factory one that came with the speaker.

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Reviewed by Lee R.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

Great super fast delivery for a replacement driver!

Great to know replacement parts are available when you need them!


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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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