In the ever-evolving world of car audio, DS18 leads the way with innovation and the ZXI.4 is proof. As a bold evolution of our iconic Z Series amplifiers, the ZXI.4 delivers next-level performance and design.
More than just an amp, the ZXI.4 is a finely crafted powerhouse. Its modern, streamlined exterior houses advanced heat sinks and a premium circuit board, providing reliable cooling and durability even under extreme conditions so your sound never misses a beat.

Key Features:

• 4 Channel Full Range
• Class D
• 2 ~ 4 Ohm Stable
• 4 x 125 Watts @ 4 Ohm
• Clip Indicator
• Built in Crossover

Specifications:

• Total Watts (Peak): 2200W
• RMS Power @ 4 Ohm: 4 x 125W
• RMS Power @ 2 Ohm: 4 x 185W
• RMS Power @ 1 Ohm: N/A
• RMS Power @ 4 Ohm Bridge: 2 x 370W

• Audio
• 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
• 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: 2 x 40A
• Remote Level Control: No
• Cooling Fan: No
• Voltmeter: No
• 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

• Extra Features
• Tiffany RCA Connectors: Yes
• Input Selector: Yes (2ch/4ch)
• Compact Size for Easy Installation: Yes
• Stable/Reliable Two-Layer PCB Design: Yes
• QC Verified via Audio Precision Instruments: Yes

• Measurement
• Overall Length: 9.5″ / 241.3mm
• Overall Width: 5.66″ / 144mm
• Overall Height: 1.9″ / 48.5mm
• Heatsink Length: 8.7″ / 221.3mm
• Gross Single Unit Weight (lb): 5