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Black Diamond DIA1250.4: 1250W 4-Channel Full Range Class-AB Amplifier OPEN BOX

SKU DIA-1250.4-OPEN-8669
Sold out
Original price $159.99
Original price $159.99 - Original price $159.99
Original price $159.99
Current price $121.59
$121.59 - $121.59
Current price $121.59

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  • Powerful Output: Delivers an impressive 1250 watts of peak power, ensuring your audio system hits hard with clear, dynamic sound.
  • Versatile Compatibility: Supports speaker impedances from 1 to 4 ohms, making it perfect for various audio setups without the need for multiple amplifiers.
  • Comprehensive Full Range: Capable of handling the complete frequency spectrum, ideal for powering midranges, tweeters, drivers, and coaxials.
  • Compact and Reliable: Features a compact design for easy installation and a stable, double-sided PCB layout for enhanced reliability.
  • Advanced Protection: Equipped with short circuit and thermal voltage protection, along with audio precision quality control verification for dependable performance.

Black Diamond DIA1250.4: 1250W 4-Channel Full Range Class-AB Amplifier OPEN BOX

**Please reference pictures

Original Box has tears (damaged box)

In Working Condition

Open-box items are NOT subject to returns. They are sold "AS IS". All requests for returns will not be accepted.**

This Listing Includes:

  • (1) Black Diamond Amplifier DIA-1250.4


Experience the perfect balance of power and efficiency with a maximum output of 1250 watts, courtesy of cutting-edge technology that prioritizes energy conservation. This versatile amplifier, compatible with speaker impedances ranging from 1 to 4 ohms, eliminates the need for multiple amps to suit different applications. Look no further if you seek an amplifier capable of handling the complete frequency spectrum. Wire your most potent midranges, tweeters, drivers, or coaxials to this comprehensive full-range series. Never worry again about having the right amp for the job.


  • Compact Size for Easy Installation

  • Stable & Reliable Double-Sided PCB Layout Design

  • Surface Mount Component Technology

  • Short Circuit and Thermal Voltage Protection

  • Audio Precision Quality Control Verification

Power Specifications:

  • Total Watts (Peak): 1250W

  • RMS Power 2 ohm: 70W x 4

  • RMS Power 4 ohm: 50W x 4

Audio Specifications:

  • RMS Power 4 ohm Bridged: 140W x 2

  • Frequency Response: 20Hz-20kHz

  • Signal to Noise Ratio: >90dB

  • Total Harmonic Distortion (THD): 0.3%

  • Low Level Input Range: 0.2-6V

  • X-Over Filter Range: 40-400Hz

Package Dimensions:

  • Length: 13.0"

  • Width: 8"

  • Height: 4"

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.

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