Helix AAC.3 HP - High-Low Signalwandler

The integration of car hi-fi components in existing original sound systems with separate amplifiers is becoming more and more complex due to the intelligent radio diagnostic systems and the lack of preamplifier outputs.

This is where the new HELIX AAC.3 HP comes into play.

The most intelligent high-low converter in its class 

Thanks to the integrated ADEP.2 circuit, which bypasses the radio diagnosis system, error messages or even the loss of individual functions (such as faders) are a thing of the past.
Distorted music signals and an increased harmonic distortion, which can occur in connection with conventional high-low converters, are prevented by the intelligent ADEP.2 circuit. In addition, the car radio amplifier is relieved and its power consumption is reduced by up to 70%.

Smart signal detection

Its “Double Activation Circuit” also generates a +12 V remote signal in two different ways to switch on the connected retrofit amplifier. It either recognizes the direct voltage potential on the loudspeaker outputs of standard factory amplifiers or uses an integrated signal recognition with variable input sensitivity, which can also be activated.
The standard equipment also includes the "Power Save Mode", which switches off the remote output if longer than 2 min. there is no input signal. Because many vehicles with “CAN” or similar bus systems leave the sound system “invisible” for up to 15 minutes. activated, even if you have left the vehicle in the meantime.

Capable of high resolution

The AAC.3 HP generates a high-quality preamplifier signal from the loudspeaker signal of the amplifier of an original sound system and thus enables the simple connection of additional retrofit amplifiers. Its particularly wide transmission range from 18 Hz to 80,000 Hz guarantees excellent sound and makes it capable of high resolution.

For original sound systems without a separate factory amplifier, we recommend using the AAC.3. This is specially developed for direct connection to the speaker outputs of the factory radio.

Features

• Enables a retrofit amplifier to be connected to factory sound systems with a separate amplifier
• Excellent sound thanks to particularly wide transmission range (18 Hz - 80 kHz)
• For all OEM sound systems with a separate amplifier and up to 155 watts max. Output power suitable
• "ADEP.2" circuit "for bypassing loudspeaker diagnostic systems
• Microcontroller-controlled monitoring of the music signal and generation of the remote signal
• "Power Save Mode" - reduces the power consumption of connected amplifiers when there is no music signal (after 2 min.)
• "Double Activation Circuit" - generates a +12 V remote signal for switching on connected amplifiers in two different ways
• High-quality, cast and gold-plated cinch couplings for loss-free signal transmission

Technical specifications

• Max. Input level:  25 volts (= 155 watts / 4 ohms)
• Input impedance: 13 ohms
• Max. Output level: 4.0 volts
• Frequency range: 18 Hz - 80,000 Hz
• Load capacity remote output: 200 mA
• Operating voltage: 7-18 volts
• Dimensions (H x W x D): 77 x 37 x 20 mm

compatibility

For all OEM sound systems with a separate amplifier and up to 155 watts max. Output power suitable