HELIX AAC.3 HP - High to Low Voltage Converter | Up to 25V

Upgrade your factory sound system with the HELIX AAC.3 HP. Smart signal detection, power save mode, and high-quality preamplifier signal for perfect sound.

If you’re looking to effortlessly integrate high-end car hifi components into your existing OEM sound system, the HELIX AAC.3 HP is the perfect solution. Designed for Australian car audio enthusiasts and professionals alike, this smart signal converter is ideal for overcoming the challenges posed by modern factory car radios with intelligent speaker diagnosis features and lack of preamplifier outputs.

The AAC.3 HP is the smartest high-low converter in its class, engineered to bypass speaker diagnostic systems thanks to the integrated ADEP.3P circuit. This clever technology prevents annoying error messages and loss of features like the fader, while also eliminating distorted sounds and increased total harmonic distortion (THD) common with conventional high-low converters. Plus, it reduces the car radio’s amp current draw by up to 70%, so you won’t overload your system unnecessarily.

Features

• Ideal for connecting additional aftermarket power amplifiers to your factory sound system without hassle

• Compatible with all factory car radios, including those with factory-installed amps

• ADEP.3P circuit bypasses intelligent speaker diagnosis features to avoid error codes

• Smart signal detection with Double Activation Circuit generates a +12 V remote signal in two ways: detecting DC offset on speaker outputs or via switchable signal detection with variable sensitivity

• Power Save Mode automatically turns off the remote output after 2 minutes of no music signal — perfect for cars with CAN or similar bus architectures that keep the system “alive” even after you leave

• High-quality preamplifier signal output with very wide frequency response (18 Hz – 80 kHz) ensures excellent sound quality and makes it ready for high-res audio reproduction

• Gold-plated, sealed RCA/Cinch connectors for lossless signal transmission

• Microcontroller-controlled monitoring of the music signal and remote signal generation for reliable operation

Technical Specifications

• Max. speaker input level: 25 Volts (= 155 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"

Why Choose the HELIX AAC.3 HP?

The HELIX AAC.3 HP is perfect for anyone wanting to enhance their factory sound system with additional amplifiers without compromising sound quality or system functionality. Its intelligent design makes it a breeze to install and operate, even in the most complex OEM sound systems. Whether you’re upgrading your car’s audio or installing a DSP, this signal converter ensures you get the best performance with minimal fuss.

What’s in the Box?

• 1 x Signal converter AAC.3 HP

Upgrade your car audio setup with the HELIX AAC.3 HP and enjoy flawless sound integration, smart power management, and the ultimate in signal conversion technology. Perfect for Australian car audio enthusiasts who demand excellence from their factory sound system and connected aftermarket power amplifiers.