DS18 Marine 900W RMS 1 Ohm Flush/Surface Mount Class-D Mono Amplifier w/ LED FX1

• Powerful Output: Delivers 900 Watts RMS at 1-Ohm for intense, impactful bass.
• Remote Level Control: Adjust your bass levels easily from the comfort of your driver's seat.
• Efficient Design: Provides high-quality sound with minimal distortion for a superior listening experience.
• Compact and Easy to Install: Integrates seamlessly into any audio system for a clean, professional look.
• High-Quality Components: Built with durability and reliability in mind, ensuring long-lasting performance.

DS18 Marine 900W RMS 1 Ohm Flush/Surface Mount Class-D Mono Amplifier w/ LED FX1

This Listing Includes:

• (1) DS18 1-Ohm Mono Amplifier FX1


• (1) Remote Bass Level Control w/ Clip Indicator


• Mounting Hardware


• Manual

The DS18 FX1 is a compact Class D monoblock amplifier designed for powerful bass output in both standard and custom installs. With support for flush or surface mounting using the included adapter, this amp gives you flexible installation options while maintaining a clean, professional look.

Delivering up to 900W RMS at 1 ohm, the FX1 is built for subwoofer applications where space is limited, but performance is critical. Its advanced digital circuit design ensures efficient power delivery with minimal heat and distortion.

Equipped with a remote bass knob, fixed low-pass filter, and clip indicator, the FX1 allows precise tuning and real-time control. The IPX5 water-resistant design and anti-corrosion coating make it ideal for marine, powersports, and exposed installs.

*The FX Series adapters are not designed to be water-resistant. Please exercise caution to prevent water contact with the DIGITAL LED'S, as exposure may result in a short circuit*

Features

• Flush or surface mount installation options


• 900W RMS at 1 ohm high output power


• Class D efficient low heat operation


• Remote bass knob with clip indicator


• Fixed the low-pass filter for subwoofer tuning


• LED surface mount adapter included


• IPX5 water-resistant amplifier design


• Anti-corrosion coated internal components


• Compact low-profile chassis


• Designed for marine and powersports use


• Tiffany Style RCA Connectors

Specifications:

• Total Watts (Peak): 2700W


• RMS Power @ 4-ohm: 400W


• RMS Power @ 2-ohm: 650W


• RMS Power @ 1-ohm: 900W


• Frequency Response: 15-250Hz


• Signal to Noise Ratio: 92dB


• Efficiency @ 4 ohm: 82%


• Damping Factor: 75


• Input Impedance: 30K-ohms


• Total Harmonic Distortion (THD): 0.08%


• Low Level Input Range: 0.2V-12V


• Selectable X-Over: Fixed LPF


• X-Over Filter Range: 50-250Hz


• Bass Boost Range:  0 -12dB


• Bass Boost Frequency: 50Hz


• Infrasonic Filter: 10-50Hz


• Phase Selector: 0/180

Dimensions:

• Body Length: 9"


• Body Width: 4.7"


• Overall Height: 1.85"


• Heatsink Length: 10.8"


• Heatsink Width: 7.2"


• Mounting Hole: 9.2"x5.8"


• Mounting Depth: 1.5"


• Gross Single Unit Weight: 2.8Kg

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.

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• 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.