About: DS18 ZXI.4 4-Channel Class D Amplifier - 125W RMS x 4 

In the world of car audio, evolution is inevitable, and DS18 understands this better than anyone else. We proudly present the ZXI.4, a monumental upgrade to our already legendary Z Series amplifiers. The DS18 ZXI.4 is more than just an amplifier; it's an elegantly designed powerhouse that effortlessly blends aesthetics with durability. Its sleek, modern design hides the high-efficiency heat sinks and high quality circuit board that keep it cool under the most demanding conditions, ensuring uninterrupted performance when you need it most.

With 125W x 4 @ 4-Ohm RMS, DS18’s ZXI.4 doesn't just play music; it commands it. Feel the earth-shaking bass and the crystal-clear highs like never before. It's not just volume; it's an immersive audio experience that'll transport you to another world. Tuning your audio system has never been easier. The DS18 ZXI.4 allows you to expertly tune your music to your preferences with easily adjustable crossover and gain controls, putting the power to create your perfect soundstage right at your fingertips. Whether you're a bass enthusiast or a lover of crystal-clear highs, this amplifier ensures that your audio settings are tailored to perfection, elevating your in-car audio experience to levels never thought possible.

The DS18 ZXI.4 isn't just an amplifier; it's the key to unlocking your car's full sonic potential. With power that roars, precision that astounds, and craftsmanship that shines; it's your gateway to an audio experience like no other. Elevate your car audio to legendary status. Your ears deserve nothing less.

Product Highlights:

• 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
• 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)
• Cliping Protection: Yes
• Body Color / Finish: Black Aluminum Brush
• Tiffany RCA connectors: Yes
• Input Selector: Yes (2ch/4ch)
• Compact Size to easy Installation for Any Applications: Yes
• Stable/Reliable Two Layers Traces PCB Design: Yes
• Quality Control Verification using Audio Precision Instruments: Yes

Measurement: 

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