ESX SXE250.4 - 4 Channel Amplifier




  • 4-Channel Class A/B Analog Amplifier
  • 4 x 150/250 Watts RMS @ 4/2 Ω
  • 2 x 500 Watts RMS bridged @ 4 Ω
  • 2 x HPF 10-250 Hz
  • LPF 50-250 Hz
  • Bass Boost 0-12 dB
  • Bandpass Mode
  • Dimensions 220 x 53 x 460 mm
  • Efficiency up to 62%


  • Aluminum Heatsink with Acrylic Inlay
  • Flush-mount Diamond Cut-Logo
  • Aluminum Frames on the Endpanels
  • Massive Connection Terminals
  • Bottom Panel with sturdy Mounting Brackets
  • High Level Inputs with Error Protection System (EPS)
  • Auto Turn-On Function via High Level Inputs
  • MOSFET PWM Power Supply, 3-Way Protection Circuit


The new SIGNUM SXE series is visually inspired by the successful HORIZON HXE series, but already shows with the massive connection terminals and the noble aluminum end panels that it plays a class higher. The new amplifiers are also the first choice in terms of sound: The high-quality NE5532 operation amplifiers in the input section ensure the finest resolutions over the entire frequency range and guarantee lowest distortion values. The amps were also upgraded with the high-level inputs with Auto Turn-On Function; they are equipped with the “Error Protection System” (EPS), so when connected to OEM factory radios no functions are impaired or error messages are written to the vehicle memory. 

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