Alpine X Series 4 Channel + Mono Stereo System Power Class D Amplifier X-A90V

AlpineSKU: X-A90V

Sale price£699.99



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.

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.



  • 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: 4-channel + 1-channel (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 (LPF) / High-pass Filter (HPF)
  • Built-in Bass EQ
  • Subsonic Filter: Variable Subsonic Filter
  • Gain Control: Adjustable
  • Bass Control: Remote Bass Control (RUX-KNOB2) Ready (Not Included)
Max Power Output Ratings
  • Total Max Power: 1800W
RMS Power Ratings
  • Per Channel into 4ohms, 14.4V (1%THD+N): 75W RMS x 4 + 300W RMS x 1
  • Per Channel into 2ohms, 14.4V (1%THD+N): 100W RMS x 4 + 500W RMS x 1
  • Bridged into 4ohms, 14.4V (1%THD+N): 200W RMS x 2
Sound Tuning
  • Subsonic Filter (Subwoofer): 8-40 Hz (-24dB/oct) for Mono
  • Crossover Frequency (LPF): 50-400 Hz (-24dB/oct) Mono
  • Crossover Frequency (HPF): 50-400 Hz (-12dB/oct) Full-Range
  • Equalizer (Bass EQ): 0-12dB
  • Power Requirements: 14.4 V.DC (9 - 16 V allowable)
  • Input Sensitivity (Speaker Level Input): 0.5 - 10V (CH1/2, CH3/4), 0.4 - 10V (Subwoofer)
  • Input Sensitivity (RCA Input) : 0.2 - 4V (CH1/2, CH3/4), 0.1 - 4V (Subwoofer)
  • 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) for CH-1/2/3/4: 10 - 60kHz
  • Frequency Response (+0, -3dB: 1W into 4 ohms) for Subwoofer: 8 - 400 Hz
  • THD+N (10W into 4 ohms): <0.02%
  • THD+N (600W into 4 ohms): <0.07%
  • Damping Factor for CH-1/2/3/4: >500
  • Damping Factor for Subwoofer: >1000
  • Signal to Noise (Rated Power into 4 ohms): >105dB (CH1-4)
  • Signal to Noise (Rated Power into 4 ohms): >104dB (Mono)
  • Weight: 3.3 kg
  • Heat Sink (WxHxD) mm: 297 x 51 x 192

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