HELIX AAC.3 – High-Low Converter for Factory Car Audio Systems

HELIX AAC.3 – Premium Hi/Low Signal Converter for OEM Car Radios (16 V Input, 4 V RCA Output)

The HELIX AAC.3 is a high-quality high-to-low level (Hi/Low) signal converter designed to integrate aftermarket amplifiers into factory car audio systems without preamp (RCA) outputs. It converts speaker-level signals into clean RCA outputs while maintaining excellent sound quality and full compatibility with modern OEM head units.

Featuring ADEP.3 technology, intelligent remote turn-on circuitry, and High-Resolution Audio support, the AAC.3 is the ideal solution for upgrading factory audio systems without replacing the original radio.

Easy Integration with Factory Audio Systems

Modern OEM head units often lack RCA outputs, making amplifier installation more challenging.

The HELIX AAC.3 allows you to:

• Add aftermarket amplifiers to factory audio systems
• Convert speaker-level outputs into RCA signals
• Preserve original vehicle functions
• Upgrade your sound system without replacing the factory radio

ADEP.3 Technology

The integrated ADEP.3 (Advanced Diagnostics Error Protection) circuit bypasses the speaker diagnostic systems found in many factory radios.

Benefits include:

• Prevents diagnostic error messages
• Maintains factory functions such as fader control
• Reduces distortion (THD)
• Lowers the load on the factory amplifier by up to 70%
• Stable and reliable operation

Intelligent Remote Turn-On

The built-in Double Activation Circuit automatically generates a +12 V remote signal for connected amplifiers.

Activation methods include:

• DC offset detection
• Adjustable audio signal detection

The integrated Power Save Mode automatically switches off the remote output after approximately two minutes without an audio signal, reducing unnecessary power consumption in modern CAN-Bus vehicles.

High-Resolution Audio Ready

The AAC.3 delivers an exceptionally wide frequency response of 18 Hz to 80 kHz, ensuring accurate audio reproduction and compatibility with High-Resolution audio systems.

Advantages include:

• Wide frequency response
• Clean, low-noise RCA output
• Excellent signal quality
• Perfect for DSP processors and aftermarket amplifiers

Key Features

• Premium High-Low (Hi/Low) signal converter
• Converts speaker-level signals to RCA outputs
• Ideal for factory car radios without RCA outputs
• ADEP.3 diagnostic bypass technology
• Intelligent Double Activation remote output
• Adjustable signal detection
• Integrated Power Save Mode
• High-Resolution Audio compatible
• Gold-plated RCA connectors
• Compact design for easy installation

Technical Specifications

Package Includes

• 1 × HELIX AAC.3 High-Low Signal Converter

Why Choose HELIX AAC.3?

The HELIX AAC.3 is the perfect solution for adding amplifiers to factory car audio systems that do not have RCA outputs. Its advanced ADEP.3 technology prevents OEM diagnostic issues, while the intelligent remote turn-on and High-Resolution Audio support ensure reliable operation and exceptional sound quality.

Whether you’re installing a DSP, amplifier, or a complete aftermarket sound system, the HELIX AAC.3 provides a professional, clean, and dependable connection between your factory head unit and your new audio equipment.