Helix Class A A4+A2

Helix A2

Cont.power rating RMS/max. power at 2x4 Ohms measured at 12 V: 2 x 120 Watt
Cont.power rating RMS/max. power at 2x4 Ohms measured at 13,8 V: 2 x 150/250 Watt
Cont.power rating RMS/max. power at 2x2 Ohms measured at 13,8 V: 1 x 270/450 Watt
Cont.power rating RMS/max. power at 2x1 Ohms measured at 13,8 V: 2 x 395/650 Watt
Cont.power rating RMS/max. power at 1x4 Ohms bridged: 1 x 540/900 Watt
Cont.power rating RMS/max. power at 1x2 Ohms bridged: 2 x 790/1300 Watt
Adjust Highpass/Lowpass/Bandpass: 15 Hz - 6kHz
Total harmonic distortion (THD): < 0,009%
Signal to noise ratio: > 100 dB
Damping factor: > 450
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
Weight net: 4,7 kg

Helix A4

Cont. power rating RMS/max. power at 4 Ohms: 4 x 85/150 Watts
Cont. power rating RMS/max. power at 2 Ohms: 4 x 153/250 Watts
Cont. power rating RMS/max. power at 1 x 4 Ohms bridged + 2 x 4 Ohms: 2 x 270/450 Watts
Cont. power rating RMS/max. power at 1 x 2 Ohms bridged + 2 x 2 Ohms: 2 x 395/650 Watts
Frequency range: 20 Hz - 20 kHz
TIM: < 0,016%
Bassboost: 0 - 9 dB
Bassboost setting range for center frequencies: 30 - 120 Hz
Lowpass/ Highpass/ Bandpass: 15 Hz - 7 kHz
Total harmonic distortion: < 0,009%
Signal to noise ratio: > 100 dB
Damping factor: > 450
Input impedance: 10 kOhms
Input sensitivity: 500 mV - 8 V
Fuse: 3 x 25 A
Dimensions (H x W x D) in mm: 35 x 432 x 240
Weight net: 4,7 kgs




Driver with class A technology
Outputstage with 24 MosFet transistors
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