Helix SPXL 1000 1-channel amplifier

SPXL 1000

There are lots and lots of powerful amps out there – but only those that unconditionally control the connected loudspeakers with a grip of iron and an extremely high damping factor bear the name of HELIX. The output stages of the competition line are what the high ender calls “wired for power”. Whether it’s sheer power or enormous musical sensitivity – these power packs know every trick in the book. If you finally want to stop looking for the perfect amp, then this is where the search will end.

  • Subwoofer amplifier in Class D technology
  • Huge output power for a high control at absolute levels
  • Extremely stable output stage with selected MOSFET transistors - 1-Ohm stable
  • Integrated, active crossover with lowpass, subsonic and bass boost
  • Master-/Slave-Mode for connecting two amplifiers in bridged mode
  • Cable remote control
  • RMI (Realmixed Input) for generating an optimised mono-summing signal from the left and right channels
  • Line-Out for connecting another amplifier
  • Smart protection circuits against overheating, over- and undervoltage, speaker short circuiting, low impedance and faulty connection
  • 24 carat gold-plated solid connection terminals for lossless signal and power transmission
Output Power RMS / Max  
 at 4 Ohms 1 x 750 Watts / 1275 Watts
 at 2 Ohms 1 x 1200 Watts / 2040 Watts
 at 1 Ohm 1 x 1600 Watts / 2720 Watts
Frequency response 10 Hz - 250 Hz
Bass boost 0 - 18 dB / 40 - 120 Hz
Lowpass 35 - 250 Hz adjustable
Phase shift 0° - 180° adjustable
Total harmonic distortion (THD) < 0.33 %
Signal-to-noise ratio > 96 dB
Damping factor > 450
Input sensitivity 0.2 - 6 Volt

(H x W x D)

55 x 430 x 277 mm

2.17 x 16.93 x 10.9"

  • Amplifiers
  • 1 Channel (Mono)

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Helix SPXL 1000 1-channel amplifier

  • £579.99

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