Product Overview
The DS18 FX4 is a high-output 4-channel full-range Class D amplifier designed for extreme versatility, durability, and visual impact. Built for flush or surface mounting, this amplifier delivers powerful performance in a compact aluminum chassis while adding a premium digital chasing LED aesthetic to your setup.
Power & Performance
Delivering 180W x4 @ 4Ω, 250W x4 @ 2Ω, and 500W x2 @ 4Ω bridged, the FX4 provides clean, reliable power for full-range speakers and mids. With a peak output of 3000W, this amplifier is engineered for demanding car, marine, ATV, and powersports applications.
Class D Efficiency
The FX4 features a very high-efficiency Class D circuit design, offering strong output with reduced heat and minimal current draw. Its stable 2Ω stereo operation ensures consistent performance in compact installations.
Flush & Surface Mount Design
Unlike traditional amplifiers, the FX4 supports both flush and surface mounting. The included surface mount adapter features integrated digital chasing LED lighting, making the amplifier a visual centerpiece in custom audio builds.
Water Resistance & Durability
Designed with an IPX5 water-resistant rating when flush mounted, anti-corrosion PCB coating, and rugged aluminum housing, the FX4 is built to withstand harsh environments and moisture-prone installations.
System Tuning & Control
Selectable LPF, HPF, or full-range crossovers, adjustable bass boost, and LED clipping indicators allow precise tuning while protecting speakers and maintaining sound clarity.
Key Features
4-Channel Full-Range Class D Amplifier
3000W Peak Power Output
Flush or Surface Mount Installation
Digital Chasing LED Surface Adapter
IPX5 Water-Resistant (Flush Mounted)
High-Efficiency Digital Circuit Design
Protection Systems
Thermal Protection
Overload Protection
DC Output Protection
Short Circuit Protection
Voltage Input Protection (8.5–16.8V)
Clipping Protection
Specifications
Power Output: 180W x4 @ 4Ω / 250W x4 @ 2Ω / 500W x2 @ 4Ω Bridged
Frequency Response: 20Hz – 20kHz
Signal-to-Noise Ratio: 87 dB
THD: 0.15%
Crossover Range: 40Hz – 2kHz
Bass Boost: 0–12 dB @ 50Hz
Efficiency @ 4Ω: 79%
Minimum Impedance: 2Ω Stereo / 4Ω Bridged
Power Terminal: 4 AWG
Fuse Rating: 80A (2 x 40A)
Dimensions & Weight
Body Size: 9” L x 4.7” W x 1.85” H
Heatsink Size: 10.8” L x 7.2” W
Mounting Depth: 1.5”
Weight: 2.75 kg
Important Notice
FX Series surface mount LED adapters are not water-resistant. Avoid water exposure to prevent damage to the LED system.
