Helix AAC.3

The integration of car hifi components into existing OEM sound systems becomes more and more challenging as today’s factory radios either lack of preamplifier outputs or incorporate intelligent speaker diagnosis features. That’s where the new Helix AAC.3 comes into play.

The smartest high-low converter in its class
Forget about error messages or loss of features (e.g. the fader) – the integrated ADEP.3 circuit cleverly “bypasses” the speaker diagnosis in factory car radios. Distorted sounds and increased THD which may occur with conventional high-low converters are prevented as well. The good thing is that the ADEP.3 doesn’t load the car radio’s amp unnecessarily and therefore reduces its current draw by up to 70 %.

SKU: H014603 Category: Brands:


  • Allows a simple connection of additional amplifiers to your factory sound system
  • Suitable for all car radios – even those with factory-installed amps
  • “ADEP.3 circuit” for bypassing radio diagnostic systems
  • Microcontroller-controlled monitoring of the music signal and generation of the remote signal
  • “Power Save Mode” – significantly reduces the power consumption of connected amplifiers when no input signal is present (after 2 min.)
  • “Double Activation Circuit” – generates a +12 V remote signal in two different ways to turn on connected amplifiers
  • Excellent sound quality thanks to very wide frequency response (18 Hz - 80 kHz)
  • High-quality, sealed and gold plated RCA / Cinch connectors for lossless signal transmission


Max. speaker input level 16 Volts (= 65 Watts / 4 Ohms)
Input impedance 13 Ohms
Max. output level 4.0 Volts
Frequency response 18 Hz – 80,000 Hz
Max. current for remote output 200 mA
Operating voltage 7 – 18 Volts
Dimensions (H x W x D) 77 x 37 x 20 mm /
3.03 x 1.46 x 0.79″


1 x Signal converter AAC.3