Description
DS18 ZXI.4XL
The ZXI.4XL is a high‑power 4‑channel Class‑D full‑range amplifier from the DS18 ZXI series designed to deliver robust and efficient audio power for cars, UTVs, powersports vehicles, and custom sound systems. It produces up to 250 W RMS per channel at 4 Ω and 400 W per channel at 2 Ω, with the ability to be bridged into 800 W × 2 for driving high‑power speaker setups or running a powerful front/rear or component system. The amp features variable crossovers (LPF/HPF/FULL) so you can tailor frequency output to your speaker configuration, high‑quality circuitry with thermal and overload protections, and a compact yet rugged design suitable for demanding environments. With high efficiency and low distortion, the ZXI.4XL provides clean, dynamic sound and is ideal for enhancing both everyday listening and competition‑level audio systems.
Specifications
| Specification |
Details |
| SKU |
ZXI.4XL |
| Total Watts (Peak) |
4800W |
| RMS Power @ 4 ohm |
4 x 250W |
| RMS Power @ 2 ohm |
4 x 400W |
| RMS Power @ 1 ohm |
N/A |
| RMS Power @ 4 ohm Bridge |
2 x 800W |
Audio
| Specification |
Details |
| Frequency Response |
20Hz – 20KHz |
| Signal to Noise Ratio |
>90dB |
| Efficiency @ 4 ohm |
>85% |
| Damping Factor |
>200 |
| Total Harmonic Distortion (THD) |
<0.1% |
| Low Level Input Range |
0.2 – 6V |
| High Level Input |
No |
| Selectable X-Over |
LPF / FULL / HPF |
| X-Over Filter Range |
40Hz – 4KHz |
| Bass Boost Range |
No |
| Bass Boost Frequency |
No |
| Infrasonic Filter |
No |
| Phase Selector |
No |
Features
| Specification |
Details |
| Amplifier Class |
Digital |
| Amplifier Type |
Stereo Full Range |
| Number of Channels |
4 |
| Minimum Impedance |
2 ohm (Stereo) / 4 ohm (Bridge) |
| LED Indicator |
Power / Protection / Clip |
| Power Input Terminal Size |
4ga |
| Fuse Size |
200A (External) |
| Remote Level Control |
No |
| Cooling Fan |
No |
| Voltmeter |
No |
Extra Features
| Specification |
Details |
| Thermal Protection |
Yes (>160°F / 71°C) |
| 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 Brush |
| Tiffany RCA Connectors |
Yes |
| Input Selector |
Yes (2ch / 4ch) |
| Compact Size for Easy Installation |
Yes |
| Stable / Reliable Two Layers PCB Design |
Yes |
| Quality Control Verification |
Yes, using Audio Precision Instruments |
Measurement
| Specification |
Details |
| Overall Length |
12.2″ / 310mm |
| Overall Width |
5.66″ / 144mm |
| Overall Height |
1.9″ / 48.5mm |
| Heatsink Length |
11.42″ / 290mm |
| Gross Single Unit Weight |
7 lb |
Product Overview
ELITE Full-Range 4-Channel Class D Amplifier – 250W x 4CH @ 4 OHM
The ZXI Series is one of the leading amplifier families in DS18’s catalog!
As one of our best-selling lines, it’s only right we honor it with EXTREME upgrades given our decade of experience!
The ZXI.4XL is one of the most versatile amplifiers in our catalog: this Full-Range Amplifier outputs enough power to supercharge any powerful competitive or casual sound system and any of the components that build it!
This 4-channel amplifier supplies pure and clean 4-channel signal and 2 channel outputs to run HQ signal to run to another amp or string of amps. There is also a selector switch to move from 4 channel to 2 channel mode.
Built from top of the line components (Block Style Terminals, Fully Variable Crossover, Platinum Finish Connections, and High Quality Protection Circuitry) this amplifier is guaranteed to deliver insane quantities of RMS Power on demand!
The ZXI.4XL handles 250W x 4CH @ 4 OHM; 400W x 4CH @ 2 OHM; and 800W x 2CH @ 4 OHM Bridge of RMS Power.
REQUIRES 200A OF EXTERNAL FUSING
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