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A1 Competition - Helix 1 Ch 400/800 Watt High-End Amplifier

  • SKU #: 74430

Special Price $900.99

Retail: $990.90

($89.91 savings)

Availability: Discontinued

Condition: Brand New

A1 Competition - Helix 1 Ch 400/800 Watt High-End Amplifier

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 Features:
  • Cont.power rating RMS/max. power at 1x4 Ohms measured at 12 V: 1 x 240 Watt
  • Cont.power rating RMS/max. power at 1x4 Ohms measured at 13,8 V: 2 x 300/500 Watt
  • Cont.power rating RMS/max. power at 1x2 Ohms measured at 13,8 V: 1 x 540/900 Watt
  • Cont.power rating RMS/max. power at 1x1 Ohms measured at 13,8 V: 2 x 790/1300 Watt
  • Adjust Highpass/Lowpass/Bandpass: 15 Hz - 6kHz Total harmonic distortion (THD): < 0,009%
  • Signal to noise ratio: > 100 dB
  • Dampings factor at 4 Ohm adjustable:

    > 50 to >1500
  • Frequency range: 20 Hz -20 kHz
  • TIM Distortion:

    < 0,016%
  • Input sensitivity:

    500 mV - 8 V
  • Fuse:

    4 x 20 A
  • Input impedance: 10 kOhm
  • Bassboost adjustable: 0 - 9 dB
  • Dimensions (Height/Width/Depth) in mm: 35 x 240 x 432
  • Weight net: 4,7 kg


  • Driver with class A technology
  • Outputstage with 24 MosFet transistors
  • Adjustable damping factor from > 50 - 1500
  • RMI (realmixed input) for forming an optimised mono-summation signal from the left and right channels
  • NFI (noisefree input) for distortion-free listening
  • Intelligent active crossover
  • Bass Boost Control 0-9 dB, adjustable center frequencies 30-120 Hz
  • Mono/Bridged/ Stereo switch
  • 8.0 volt input for connection to any signal source
  • ADC - Anti Distortion Choke to eliminate distortions
  • Intelligent temperature and power controlled switching power supply
  • Separate speaker protection circuit with current limitation for speaker short-circuiting, cable contact with car chassis, low impedance and wrong connection
  • CPS - Color Protection System
  • SMD - Surface Mounting Devices for constant assembling quality
  • Double-sided, extra strong (2x 110u) and copper plated pc-board for best power and signal transmission and protection against vibrations
  • 24-karat gold-plated solid connectors suitable for 25 m²/ gauge 4 cables
  • Temperature-optimised heatsink for highest efficiency
  • 1% accurate components for perfect audiophile sound quality and maximum power
  • Smoked-grey plexi cover with both side printing

A1Competition - Helix 1 CH High-End Amplifier

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