Black Diamond 5.25" Coaxial Speaker Pair - 2-Way, 4-Ohm, 120 Watts Pea — Big Jeff Audio Dealer Platform
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  • GREAT SOUND BUILT FOR TRUE AUDIOPHILES- Black Diamond DIA-525.2 5.25" Coaxial Speakers provide clear, crisp sound while simultaneously providing great balance.
  • HIGH-QUALITY MAGNET- Settle for nothing but the best with ferrite magnets that produce a wider range of tones and can handle tremendous power at high volumes.
  • EFFICIENCY- This ultra-reliable coaxial speaker set offers a midrange and tweeter combo all at one great price!
  • POWERFUL TWEETER- Built with a high-quality neodymium magnet, this coaxial speaker set provides reliable sound quality you can trust.
  • PRODUCT DIMENSIONS- LxWxH (in inches) 5.25" x 3.5" x 2.75"

Pair of Black Diamond 5.25" Coaxial Speaker 2 Way 4-Ohm 120 Watts

This listing includes:

  • (1) Pair Black Diamond 5.25" Coaxial Door Speakers DIA-525.2

The DIA-525.2 delivers an impressive 120W Max Power with 40W RMS enough to tackle a full range of audio without leaving a huge hole in your wallet! Black Diamond has designed the perfect speaker that combines a midrange and a tweeter giving you a great balance and value in one efficient package, Removable Protective Cover Included. Upgrade from the stock door speakers that came with your car. The DIA-525.2 line from Black Diamond you'll get a sense on what you've been missing out on.


  • Nominal Diameter: 5.25"

  • Nominal Impedance: 4 ohms

  • RMS Power Handling: 40 Watts

  • MAX Power Handling: 120 Watts

  • Sensitivity (1w/1m): 83 dB

  • Frequency Response: 80Hz - 20KHz

  • Recommended HI Pass Crossover: 90Hz

  • Number of Speakers: 2-Way


  • Voice Coil Diameter: 1"

  • Voice Coil Former Material: KSV

  • Winding Material: PE

  • Cone Material: PPI

  • Surround Material: Rubber

  • Basket Material: Steel

  • Magnet Material: Ferrite

  • Magnet Weight: 15 oz


  • Nominal Diameter: 1"

  • Voice Coil Diameter: 0.85"

  • Voice Coil Former Material: KSV

  • Winding Material: PE

  • Diaphragm Material: PEI Dome

  • Magnet Material: Neodymium


  • Front Mount Baffle Cutout: 4.6" (117mm)

  • Mounting Depth: 2.18" (55.5mm)

  • Motor Diameter: 3.14" (80mm)

Payment Information


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All orders over $500 will require a signature for delivery.

All pre-selected shipping rates and methods are for customers with a
valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam,
U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
a member of our team for detailed shipping charges.

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payment please confirm your address has been verified with PayPal. Once
payment is made shipping address can not be changed/altered. Payments
made using an unverified PayPal address will be refunded and order will
be canceled.

We will not accept request to change shipping address once payment
has been made. Please confirm your shipping address is up-to-date and

Typical handling time for orders is 1-business day. We do our best
to ship every package with-in 1 business day of receiving a cleared
payment. In some circumstances additional time may be need, in which
case we will contact buyer.

Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
back to us by the carrier, you will need to pay the shipping cost in
full to have the package sent back to you or we can refund the money
minus the cost of shipping


If you have not received your package, but the tracking information shows that it was delivered,
please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

Be sure to double check your mailbox and other usual spots for package delivery


If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.