DS18 FX4 Flush Mount Class D 4-channel Amplifier with Acrylic Cover

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

Key Features 

4 Channel Full Range
Flush Mount / Surface Mount
4 X 180 Watts RMS @ 1 Ohm
CLASS D
Digital Dream LED Lights 
Built in Crossover
Not Marine Rated, exercise caution to avoid exposure to water
SPECS

SKU
FX4
Total Watts (Peak)
3000W
RMS Power @ 4 ohm
4 x 180W
RMS Power @ 2 ohm
4 x 250W
RMS Power @ 1 ohm
N/A
RMS Power @ 4 ohm Bridge
2 x 500W

Audio

Frequency Response
20Hz-20KHZ
Signal to Noise Ratio
87dB
Efficiency @ 4ohm
79%
Damping Factor
80
Input Impedance
28Kohms
Channel Separation
60dB
Total Harmonic Distortion (THD)
0.15%
Low Level Input Range
0.3-6V
High Level Input
N/A
Selectable X-Over
LPF/HPF/FULL
X-Over Filter Range
40Hz-2KHz
Bass Boost Range
0~12dB
Bass Boost Frequency
50Hz
Infrasonic Filter
N/A
Phase Selector
N/A

Features

Amplifier Class
Digital (D)
Amplifier Type
Stereo Full Range
Number of Channels
4
Minimum Impedance
2 Ohm Stereo / 4 Ohm Bridge
Led Indicator
Power / Protect / Clip
Power Input Terminal Size
4 Ga
Fuse Size
80A (2x40A)
Remote Level Control
No
Cooling Fan
No
Voltmeter
No
Thermal Protection
Yes
Over-Load Protection
Yes
DC Output Protection
Yes
Short Circuit Output Protection
Yes
Voltage Input Protection
Yes (8.5-16.8V)
Clipping Protection
Yes
Body Color / Finish
Black Aluminum

Extra Features

Input Channel Selectable
Yes (2/4 Channels)
Remote Level Control with Clip Indicator and Metal Case
No
RCA Low Level Output
Yes
Tiffany RCA Connector
Yes
Very High Efficiency Digital Circuit Design
Yes
PCB with Anti-Corrosion Protection Coating
Yes
Surface Mount Component Technology
Yes
Quality Control Verification using Audio Precision Instruments
Yes
Surface Mounting with Digital Chasing LED Adapter
Yes (Included)

Measurement

Body Length
9" / 228mm
Body Width
4.7" / 120mm
Overall Height
1.85" / 47mm
Heatsink Length
10.8" / 275mm
Heatsink Width
7.2" / 182mm
Mounting Hole
9.2"x5.8" / 233.7x147mm
Mounting Depth
1.5" / 39mm