DD Audio 4-ch Amplifier 1000W Total Power IPX67 Marine Grade High Leve — Big Jeff Audio Dealer Platform
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  • High Output in Compact Size: Delivers a powerful 1000W across four channels in a small footprint.
  • Versatile Power Distribution: Capable of powering mids, highs, and a subwoofer with separate channel allocation.
  • Robust Build Quality: Features a marine-grade, water-resistant design with heavy-duty aluminum chassis.
  • Enhanced Sound Control: Equipped with 12dB/Oct bandpass filters for precise audio customization.
  • Efficient Thermal Management: Advanced design ensures effective heat dissipation, maintaining performance even in challenging environments.

This Listing Includes:

  • (1) DD Audio SX4.1000 4-Channel Amplifier

The SX4.1000 from DD Audio is a compact powerhouse, delivering a total of 1000 watts across its four channels within just 32 square inches. This multi-channel amplifier provides a versatile 2Ã250 watts to the mids and highs, along with 500 watts dedicated to the low-end frequencies, making it an ideal choice for rugged duty system designs.


  • Operating Voltage: 9 - 16

  • Test Voltage: 14.4

  • Input Channel(s): 4

  • Output Channel(s): 4

  • Continuous Wattage @4ohm: 4 x 150 Watts

  • Continuous Wattage @2ohm: 4 x 250 Watts / 2 x 500 Watts

  • Max Current Draw: 100 Amps

  • RCA Input Voltage Sensitivity: 10 - 0.4

  • High-Level Input Voltage Sensitivity: 10 - 0.4

  • RCA Input S/N: > 85

  • Damping Factor: > 70

  • THD: < 0.1%

  • Frequency Response: 10 - 20k Hz

  • High Pass Filter: 50 - 5k Hz

  • Low-Pass Filter: 50 - 5k Hz

  • Power Wire Gauge: 8

  • Speaker Wire Gauge: 16

  • Dimensions (Inches): 7 x 4.5 x 2

  • Dimensions (MM): 178 x 115 x 50

  • Item Weight (Lbs.): 2.89


  • IPX67 Rated: Dust Tight and High Water Resistance

  • High-Level Inputs and 12dB/Oct High Pass/Low Pass crossovers

  • Heavyweight DD Aluminum Chassis

  • Aluminum End Panels and Bottom Panel

  • 8 AWG Power Terminals

  • Marine Grade build for moderate moisture exposure

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.