DS18 4Ch Marine & Powersports Amplifier Class D 1440W /w Fuse & Holder — Big Jeff Audio Dealer Platform
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  • The included a marine grade fuse and fuse holder that is connected inline with your main power wire will help with ultimate protection against the elements.
  • Latest Digital amplifier design with SMC technology.
  • Submergible IPX7 Waterproof Rating

DS18 4Ch 1440W Marine & Powersports Amplifier Class D w/ Fuse & Holder NVY.IPX7

This listing includes:

  • (1) DS18 4 Channel Marine & Powersports Amplifier NVY.IPX7.4

  • (2) Extra 30A Fuses (4 Total)

  • (8) Small Butt Connectors

  • (2) Large Butt Connectors

  • (4) Philips Head Screws

  • (1) Allen Wrench

The NVY series was manufactured to put power back into your hands whether youre out on the great blue or maneuvering on the dirt path less traveled.Our latest amplifier added to this series has an IPX waterproof rating of IPX7, giving this fortified beast of a machine the ability to be submerged in water as deep as 1 meter for up to 30 minutes. It also has a 2 CH/ 4 CH input selector giving you complete control over how much power gets designated to each of your speakers.

Place this amplifier anywhere using our Direct Power harness design manufactured to give you creative control over where you get the wave making tunes on your marine vehicle.


  • UV, Salt and Fog protection.

  • 2ch / 4ch Input Selector.

  • Maximum output of 120W x 4CH bridged at 4-Ohms, 200W x 4CH at 2-Ohms, and 350W x 2CH at 4-Ohms.


  • Amplifier Class: Digital (D)

  • Amplifier Type: Full Range Marine Amplifier

  • Number Of Channels: 4

  • Minimum Impedance: 2 Ohm / Ch (4 Ohm Bridge)

  • Led Indicator: Protection (Red) | Power (Blue)

  • Power Input Size: 8 Ga

  • Fuse Size: 2 x 30A

  • Thermal Protection: Yes

  • Over-Load Protection: Yes

  • Short Circuit Output Protection: Yes

  • Voltage Input Protection: Yes (9.5 ~ 16V)

  • Body Color | Finish: Black Anodize

  • 2CH | 4CH Input Selector: Yes

  • Waterproof Rating: IPX7

  • UV / Salt / Fog Protection: Yes

  • Direct Power Harness Design: Yes

  • Surface Mount Component Technology: Yes

  • Marine Grade Fuse Holder: Yes


  • Total Watts (Peak): 1440 Watts

  • RMS Power @ 4 OHM: 4 x 120 Watts

  • RMS Power @ 2 OHM: 4 x 200 Watts

  • RMS Power @ 4 OHM Bridge: 2 x 350 Watts

  • Frequency Response: 20Hz ~ 20KHz

  • Signal To Noise Ratio 1W @ 4 Ohm: >90dB

  • Efficiency @ 4 OHM: 94%

  • Input Impedance: >20K Ohms

  • Channel Separation: >-70dB

  • Total Harmonic Distortion (THD): 0.1%

  • Low Level Input Range: 270mV ~ 5.6V

  • Selectable X-over: HPF/FULL/LPF

  • X-over Filter Range: 50Hz ~ 4KHz


  • Overall Length: 10 (253mm)

  • Overall Wide: 4.5 (116mm)

  • Overall Height: 1.9 (48.5mm)

  • Heatsink Length: 8.5 (216mm)

  • Gross Single Unit Weight: 4 Lbs

Payment Information


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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.

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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.