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Alpine UK Webshop X-A70F - 4-Channel Power Amplifier
X-A70F - 4-Channel Power Amplifier

X-A70F - 4-Channel Power Amplifier

  • £42900

incl. VAT, plus Shipping
The delivery takes 5-7 working days. On Sundays and public holidays no delivery takes place.

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: 1400W

RMS Power (14.4V / 4 Ohms): 4 x 120W

RMS Power (14.4V / 2 Ohms): 4 x 175W




  • 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: Channel Design: 4/3/2 Channel
  • 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)
  • Gain Control: Adjustable
  • Bass Control: Remote Bass Control (RUX-KNOB2) Ready



    Max Power Output Ratings

    • Total Max Power: 1400W

    RMS Power Ratings

    • Per Channel into 4ohms, 14.4V (≤1%THD+N): CH 1-4 4 x 120W
    • Per Channel into 2ohms, 14.4V (≤1%THD+N): 4 x 175W
    • Bridged into 4ohms, 14.4V (≤1%THD+N): 2 x 350W

    Sound Tuning

    • Crossover: Variable LPF, 50-400Hz (-12dB/oct )
    • Crossover: Variable HPF, 50-400Hz (-12dB/oct )


    • Power Requirements: 14.4 V.DC (9 - 16 V allowable)
    • Input Sensitivity (RCA Input): Hi: 0.5 - 10 V Lo: 0.2 - 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) for CH-1/2/3/4: 10Hz - 60kHz
    • THD+N (10W into 4 ohms): <0.02%
    • THD+N (120W into 4 ohms): <0.07%
    • Damping Factor: >500
    • Signal to Noise (Rated Power into 4 ohms): >106dB
    • Weight: 3.2 kg


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