DS18’s SXE Amplifiers are built to dramatically enhance the sound quality of any vehicle audio system. With the SXE-4000.4D in control, your speakers are free to deliver the full richness and detail of your favorite music.
Equipped with a fully variable crossover, adjustable input gain sensitivity, and a multi-channel configuration, the SXE-4000.4D gives you complete control over your sound. Whether you’re dialing in powerful lows or crisp highs, this amplifier ensures precise, high-fidelity playback. Its compact design makes installation effortless, making it a perfect fit for any custom car audio build.

Key Features:

• Full Range Amplifier
• 4 Channel
• Class D
• 2 ~ 4 Ohm Stable
• 4 x 275 Watts @ 4 Ohm
• Compact Design

Specifications:

• Power
• Total Watts (Peak): 4000W
• RMS Power @ 4 Ohm: 4 x 275W
• RMS Power @ 2 Ohm: 4 x 430W
• RMS Power @ 1 Ohm: N/A
• RMS Power @ 4 Ohm Bridge: 2 x 750W

• Audio
• Frequency Response: 10Hz – 20KHz
• Signal to Noise Ratio: 90dB
• Efficiency @ 4 Ohm: 86%
• Damping Factor: 140
• Input Impedance: 20k
• Channel Separation: 45dB
• Total Harmonic Distortion (THD): 0.05%
• Low Level Input Range: 200mV – 5V
• High Level Input: No
• Selectable X-Over: HPF / FULL / LPF
• X-Over Filter Range: 40Hz – 2KHz
• Bass Boost Range: No
• Bass Boost Frequency: No
• Infrasonic Filter: No
• Phase Selector: No

• 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: 4Ga
• Fuse Size: External fuse
• Remote Level Control: No
• Cooling Fan: No
• Voltmeter: No
• Thermal Protection: Yes (80)
• Over-Load Protection: Yes
• DC Output Protection: Yes
• Short Circuit Output Protection: Yes
• Voltage Input Protection: Yes (16.5V)
• Clipping Protection: Yes
• Body Color / Finish: Red Brushed Aluminum

• Measurement
• Overall Length: 11″ / 279.3mm
• Overall Width: 5.5″ / 140mm
• Overall Height: 1.8″ / 48mm
• Heatsink Length: 9.5″ / 242mm
• Gross Single Unit Weight: 2.07KG

• Extra Features
• Compact Size for Easy Installation: Yes
• Stable/Reliable Two or Four Layer PCB Design: Yes
• Surface Mount Component Technology: Yes
• Quality Control Verified Using Audio Precision Instruments: Yes
• Remote Level Control with Clip Indicator: No