Alpine X Series 4 Channel Stereo System Power Class D Amplifier X-A70F

AlpineSKU: X-A70F

Sale price£599.99



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: 4/3/2 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 (Not Included)
Max Power Output Ratings
  • Total Max Power: 1400W
RMS Power Ratings
  • Per Channel into 4ohms, 14.4V (1%THD+N): 120W RMS x 4
  • Per Channel into 2ohms, 14.4V (1%THD+N): 175W RMS x 4
  • Bridged into 4ohms, 14.4V (1%THD+N): 350W RMS x 2
Sound Tuning
  • Crossover Frequency (LPF): 50-400 Hz (-12dB/oct)
  • Crossover Frequency (HPF): 50-400 Hz (-12dB/oct)


    • Power Requirements: 14.4 V.DC (9 - 16 V allowable)
    • Input Sensitivity (Speaker Level Input): 0.5 - 10V
    • Input Sensitivity (RCA Input) : 0.2 - 4V
    • 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
    • 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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