DS18 SXE-4000.4D Class D 4-Channel Full-Range Car Amplifier 275 x 4 RMS @4 OHM 4000 Watts

  • $284.95
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DS18’s SXE series of amps was designed for users looking for an extreme increase to the quality of music reproduced by their vehicle. The SXE-4000.4D guarantees your sound system’s speakers perform at their peaks on every use.

The SXE series of amplifier gives users the ability to tailor the audio reproduced by their vehicle to their personal listening preferences through the use of it’s fully variable crossover, adjustable gain input sensitivity, and multi-channel amplifier design: everything you need to take control of your listening experience.

As a Class D amplifier, the SXE series uses power transformers significantly smaller than your average amplifier, making it the perfect size for any vehicle’s custom build: but, what it lacks in size it makes up for in power. The SXE-4000.4D has a power output of 750W x 2 CH bridged at 4-ohms, 430W x 4 CH at 2-ohms, 275W x 4 CH at 4-ohms: perfect power settings to supercharge any custom build.


  • Compact size for easy installation anywhere
  • Stable Two or Four Layer Traced PCB Design
  • Audio Precision Quality Control Verification
  • Full Adjustable HP/LP @ 12dB/oct Crossover
  • Various Forms of Electronic Protection

 Great For

  • Car Audio
  • Pro Audio
  • Stunt Walls
  • Motorcycle Audio
  • Powersports Audio
  • DIY Projects

Total Watts (Peak) 4000W
RMS Power @ 4 ohms 4 x 275W
RMS Power @ 2 ohms 4 x 430W
RMS Power @ 1 ohm /
RMS Power @ 4 ohms Bridge 2 x 750W
Frequency Response 10Hz-20KHz
Signal to Noise Ratio 90dB
Efficiency @ 4 ohms 86%
Damping Factor 140
Input Impedance 20kΩ
Channel Separation 45dB
Total Harmonic Distortion (THD) 0.05%
Low Level Input Range 200mV-5V
High Level Input /
Selectable X-Over HPF/FULL/LPF
X-Over Filter Range 40Hz-2KHz
Bass Boost Range /
Bass Boost Frequency /
Infrasonic Filter /
Phase Selector /
Amplifier Class Digital (D)
Amplifier Type Stereo Full Range
Number of Channels 4
Minimum Impedance 2 Ohms Stereo / 4 Ohms Bridge
Led Indicator Power/Protect/Clip
Power Input Terminal Size 4 Ga
Fuse Size External fuse
Remote Level Control /
Cooling Fan /
Voltmeter  /
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 / Black Brushed Aluminum
Overall Length 10.6" / 269mm
Overall Wide 5.5" / 140mm
Overall Height 1.8" / 48mm
Heatsink Length  9.1" / 232mm
Gross Single Unit Weight 2.05Kg

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