DS18 1200W 4-Ohm 4-Ch Full Range Class D Marine & Powersports Amplifier NXL-F4

• High-Powered Performance: Delivers up to 1200 watts of peak power, providing you with an exceptional audio experience while out on the water or off-road.
• IPX67 Waterproof and Dustproof: Built to withstand harsh marine and outdoor environments, ensuring reliable operation and longevity.
• 4 Channel Configuration: Provides versatility for powering multiple speakers or configurations, giving you flexibility in your audio setup.
• Compact and Flush Mount Design: Easily mounts into your boat or vehicle, saving space and providing a clean, integrated appearance.
• Class D Efficiency: Enjoy efficient power usage and less heat generation, leading to a cooler running amplifier and enhanced performance.

DS18 1200W 4-Ohm 4-Ch Full Range Class D Marine & Powersports Amplifier NXL-F4

This listing includes:

• (1) DS18 4 Channel Marine Amplifier NXL-F4

Flush-Mount Marine Power with Built-In Voltmeter

Elevate your marine or powersports audio system with the DS18 NXL-F4, a full-range Class D amplifier delivering serious power and sleek style. Designed to pair perfectly with DS18’s NXL series speakers, this compact amp pumps out 160W x 4 @ 2-Ohms and 100W x 4 @ 4-Ohms giving you the flexibility to run mids, highs, or coaxial with precision and power.

Whether you're cruising on a boat or blazing trails in your UTV, the NXL-F4's IP-rated marine-grade construction, flush-mount design, and built-in voltmeter ensure your system not only sounds great—but stays protected and efficient in harsh environments.

With easy installation, reliable output, and onboard diagnostics, this amp is the go-to solution for high-performance audio in tight spaces.

Features

• Marine-Grade Class D 4-Channel Amplifier - Built to withstand harsh outdoor conditions, ideal for boats, UTVs, ATVs, and motorcycles


• Flush Mount Design - Clean, space-saving installation with 238 x 135 x 41 mm compact size


• Powerful Output - 160W x 4 @ 2-Ohms or 100W x 4 @ 4-Ohms for full-range speaker systems


• Integrated Voltmeter  - Real-time battery monitoring to avoid power drops


• Efficient & Reliable - Class D design ensures stable power delivery with low heat output


• Perfect Match for DS18 NXL Speakers - Engineered for optimized loudness and clarity

Specifications:

• RMS Power @ 2 Ohm: 4 x 160 Watts


• RMS Power @ 4 Ohm: 4 x 100 Watts


• RMS Power @ 4 Ohm Bridged: 2 x 320 Watts


• Total Harmonic Distortion: Less than 0.1%


• S/N Ratio Ref 1W @ 4 Ohm: 90dB


• Gain Range: 0.2 - 6 Volts


• Crossover Range: 40Hz - 400Hz


• Frequency Range: 20Hz - 20KHz


• Bass Boost: 0 - 18dB (Rear Channels)


• Forced Cooling System: N/A


• Bass Remote Control: N/A


• Amplifier Class: Full Range Digital


• Weight: 4.5 lbs.

Dimensions:

• Length: 9.37 (238mm)


• Width: 5.31 (135mm)


• Height: 1.61 (41mm)

Accepted Payment Methods at Big Jeff Audio

At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:

Credit and Debit Cards

• Visa
• Mastercard
• American Express
• Discover
• Diners Club

Digital Wallets

• Amazon Pay
• Apple Pay
• Meta Pay (formerly Facebook Pay)
• Google Pay
• Shop Pay
• PayPal

International Payment Methods

• Bancontact
• iDEAL

Bank Transfers

• Zelle

Financing Options

We also offer financing options to make purchasing easier. Learn more about our financing options here.

• Klarna
• Affirm
• Sezzle
• Snap
• Acima
• Tiptop

If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.

Shipping Options and Delivery Time

Do You Offer Expedited Shipping?

Yes! At checkout, you can select from different shipping options:

• Standard Shipping: Free for orders over $100.
• Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.

How Long Does Delivery Take?

• Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
• Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.

What Happens If My Package Is Undeliverable?

If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.

Why Can’t I Track My Order?

If you're having trouble tracking your order:

• Make sure you’ve received the shipping confirmation email with the tracking number.
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• If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.