Black Diamond Dia-M6.4B 6.5" Midrange Speaker W/ Bullet, 500W Peak, 4 — Big Jeff Audio Dealer Platform
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Welcome To The Dealer Platform


  • MIDRANGE THAT HANDLES IT ALL - A mid-range driver that can answer the call to handle the most significant part of the audible sound spectrum. A speaker that sounds great with just instrumentals and, even better with vocals.
  • POWER YOU CAN COUNT ON - Black Diamond DIA-M6.4B delivers an impressive 500W Max Power with 250W RMS at 4 Ohms, enough to tackle a full range of audio.
  • TAKE YOUR SYSTEM TO THE NEXT LEVEL - Get the most out of your system by upgrading to a speaker that gives you everything you are missing from your stock stereo. Discover what a true midrange speaker can do for you
  • 6.5" LOUDSPEAKER WITH BULLET - Specifically designed Bullet dust cover to protect the voice coil and provide the optimal sound each and every time.
  • MEASUREMENTS - Overall Diameter: 6.61 | Overall Depth: 2.83 | Mounting Depth: 2.60 |Front Mount Baffle Cutout: 5.72 | Motor Diameter: 4.72

Black Diamond Dia-M6.4B 6.5" Midrange Speaker W/ Bullet, 500W Peak, 4 Ohms

This Listing Includes: (1) Black Diamond 6.5" Midrange Loudspeaker DIA-M6.4B

Introducing the Black Diamond 6.5" Midrange Speaker with Bullet - your all-encompassing solution for audio excellence! This dynamic mid-range driver steps up to the challenge of handling the most critical part of the audible sound spectrum. Whether it's instrumental melodies or captivating vocals, this speaker delivers exceptional sound quality. With reliable power at your fingertips, the DIA-M6.4B boasts an impressive 500 Watts Max Power and 250 Watts RMS at 4 Ohms, ensuring it can handle a broad range of audio needs. It features a substantial 30oz magnet and a robust 1.5-inch high-strength voice coil, making it perfect for high-power applications

-Nominal Diameter: 6.5"
-Nominal Impedance: 4 Ohms
-RMS Power Handling: 250W
-MAX Power Handling: 500W
-Sensitivity: (1w/1m): 94 dB
-Frequency Response: 125Hz-12KHz
-Recommended Hi Pass Crossover: 140 Hz

-Voice Coil Diameter: 1.5 / 38.6 mm
-Voice Coil Former Material: Kapton
-Winding Material: CCAW
-Cone Material: Paper
-Surround Material: Cloth
-Basket Material: Steel
-Magnet Material: Ferrite
-Magnet Weight: 30 Oz
-Displacement Volume: 0.32L

-Equivalent Volume: Vas 3.810L
-Excursion: Xmax 8.2mm
-Free Air Resonance: Fs 106Hz
-Mechanical Factor: Qms 8.027
-Electrical Factor: Qes 0.471
-Total Factor: Qts 0.445
-CD Resistance: Re 3.2 Ohms

Payment Information


We accept PayPal for all ebay orders. You can use your credit through PayPal as all major credit card are accepted by PayPal.

We accept PayPal for all international orders, your address must be verified with PayPal.

We are not responsible for any custom duties or brokerage fees that may apply for all international orders.

When you click on the Buy it Now button you are entering into a
contract whereby you agree to purchasing the item at the price listed.

If you want to ship your item to an alternate address please add
that address on your PayPal account and use the address as the default
or confirmed address to pay us through PayPal

With Free Same Business Day Shipping we work to get you your order Fast. 


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.

Shipping is available only to PayPal verified addresses. When making
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.