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Alpine UK Webshop X-A90M - Mono Power Amplifier
X-A90M - Mono Power Amplifier

X-A90M - Mono Power Amplifier

  • £42900

Alpine introduces the all-new X-Series of high-grade speakers and amplifiers. These products have been engineered and tuned to create a perfect match for extraordinarily dynamic, realistic sound reproduction and a spatial sound impression.

The all-new X-Series amplifiers set a new standard for sound quality performance and power output in a very compact design. Available in mono, four channel and five channel configuration, these amps are a perfect match for the all-new X-Series speakers and subwoofers.

Total Max Power: 1800W

RMS Power (14.4V / 4 Ohms): 1 x 600W

RMS Power (14.4V / 2 Ohms): 1 x 900W




  • Terminal Layout: One side
  • Screw Mount / Wire Cover: Plug Type Connector (PWR and SPK Terminal)
  • Mounting Design: Easy Stacking and Smart Installation


  • Amplifier Type: Class-D (Digital)
  • Channel Design: Mono
  • Thermal Control: Thermal Management Control
  • Power Supply: PWM regulated Interleaved flyback with active clamp
  • Board Circuitry: S.T.A.R. Circuitry
  • Power Indicator: Top Mounted LED Power/Status Indicator
  • Speaker Level Input with remote turn on
  • Crossover: Adjustable Low-pass Filter (LPF)
  • Built-in Bass EQ
  • Subsonic Filter: Variable Subsonic Filter
  • Gain Control: Adjustable
  • Bass Control: Remote Bass Control (RUX-KNOB2) Ready



      Max Power Output Ratings

      • Total Max Power: 1800W

      RMS Power Ratings

      • Per Channel into 4ohms, 14.4V (≤1%THD+N): 600W
      • Per Channel into 2ohms, 14.4V (≤1%THD+N): 900W

      Sound Tuning

      • Subsonic Filter (Subwoofer): 8-40 Hz (-24dB/oct)
      • Crossover Frequency (LPF): 50-400 Hz (-24dB/oct)
      • Equalizer (Bass EQ): 0-12dB (Fc 50Hz, Q Factor 1.3)


      • Power Requirements: 14.4 V.DC (9 - 16 V allowable)
      • Input Sensitivity (RCA Input): Hi: 0.4 - 10 V Lo: 0.1 - 4.0 V
      • High Level Input with automatic power on
      • Cable size: Power Cable 4AWG (20mm2), SPK Cable 8AWG (8mm2)
      • Frequency Response (+0, -3dB: 1W into 4 ohms): 8-400Hz
      • THD+N (10W into 4 ohms): <0.02%
      • THD+N (600W into 4 ohms): <0.07%
      • Damping Factor: >1500
      • Signal to Noise (Rated Power into 4 ohms): >107dB
      • Weight: 3.2 kg


      • Heat Sink (WxHxD) mm: 297 x 51 x 192
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