DS18 FX4 4-Channel Flush/Surface-Mount Class D Amplifier with Acrylic Cover — 4 x 180W RMS @ 4-Ohm
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DS18 FX4 4-Channel Flush/Surface-Mount Class D Amplifier with Acrylic Cover — 4 x 180W RMS @ 4-Ohm
Product Overview
Description
Product Overview
DS18 FX4
4 – Channel Full Range Flush Or Surface Mount Class-D Amplifier
Experience the pinnacle of car audio performance with DS18’s FX4!
Designed and manufactured specifically for professional car audio applications, the FX4 combines high-quality sound and a compact footprint for effortless installation.
The FX Series from DS18 offers a unique advantage over standard amplifiers - the ability to be installed in both flush and surface applications. With the included surface mode adapter, the FX4 can seamlessly integrate into any custom car audio build, ensuring optimal performance without sacrificing space or style. Plus, this frame has Digital LED's controlled by a Built-In Digital Light Module!
Featuring an IP65 water-resistant design (when flush mounted) and coated 4-layer PCB, this amplifier is built to withstand harsh conditions and prevent corrosion. The flush or surface installation mode makes it easy to install on ATV/RV roofs, boat walls, car audio panels, or racks, ensuring a clean and professional look.
With its stable and reliable Class D circuit design, LED clipping indicator for easier adjustment, selectable/variable crossovers, direct insert power and speaker terminals, and easy installation process, the FX4 is a true powerhouse in the world of car audio.
Delivering MAX power of 3000W and RMS power of 180W x 4 at 4 ohm, 250W x 4 at 2-ohm, and 500W x 2 at 4-ohm Bridge; the FX4 packs a powerful punch.
Elevate your car audio experience to new heights with DS18’s FX4!
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
Rule the Water
King of the COVE
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FAQs
Please read our FAQs page to find out more.
RMS vs. MAX power — which number do I actually care about?
RMS is what your gear handles continuously; MAX is the short burst it can survive without complaint. Match your amplifier's RMS output to your speakers' RMS rating — sizing off the MAX number is how magic smoke gets released.
What does the IP65 rating on DS18 marine gear actually mean?
It's dust-tight and rated against low-pressure water jets from any direction — built for spray, rain, and the occasional wave over the bow, not for full submersion. If something's going somewhere it could sit underwater, that's a different conversation entirely.
How do I match an amplifier to my speakers without guessing?
Add up the RMS rating of everything the amp will power, and pick an amp whose RMS output (at your speakers' impedance — usually 4-ohm) lands close to that total. Undersized is thin sound; wildly oversized is a fast way to blow a voice coil.
Can I mix marine-grade gear into a standard car audio setup, or the reverse?
You can run marine-grade gear in a car — it's just over-built for that environment, no downside besides cost. Running non-weatherproof car audio gear in an open UTV or boat is the direction that causes problems.
What gauge wiring kit do I need?
It scales with your amp's power draw and the length of the run — DS18's OFC kits come in 4-gauge and 8-gauge for a reason. Undersized wiring on a high-draw system is a voltage-drop and heat problem waiting to happen; when in doubt, size up.