Helix G Four (G – Series)

HELIX G FOUR

High-Performance 4-Channel Amplifier with Smart OEM Integration and Start-Stop Capability

The HELIX G FOUR brings a perfect blend of power, sound quality, and advanced integration features — all packed into a compact and stylish design. As part of the HELIX G series, this 4-channel amplifier stands out with premium-class components, comprehensive tuning controls, and Start-Stop support, making it a reliable and versatile solution for both OEM upgrades and full custom systems.

Amplifier Power with Intelligence

Designed to power your car audio system with precision, the G FOUR delivers rich, dynamic sound across four channels while maintaining high efficiency. With an extremely stable output stage and high-current transistors, it offers clean performance under demanding conditions.

Whether you’re running a full-range speaker setup or bridging for subwoofer output on channels C and D, this amplifier ensures powerful delivery with low heat output.

Complete Crossover Control & Signal Flexibility

The HELIX G FOUR features a fully active crossover section, allowing you to fine-tune your system for optimum performance. Enjoy highpass, lowpass, bandpass, and bass boost options to match your speaker and subwoofer characteristics perfectly.

An “Input Mode” switch makes signal routing more flexible—ideal for complex setups or seamless integration with factory radios.

Seamless OEM Integration with ADEP Circuit

Thanks to HELIX’s Smart Highlevel Input with ADEP (Advanced Diagnostics Error Protection), you can connect the G FOUR directly to modern factory head units without triggering diagnostic errors or disabling features like fader or EQ.

Plus, the Auto Turn-On function ensures hassle-free power control in high-level input configurations—no need for a remote wire.

Designed for Real-World Driving

Built to handle real automotive conditions, the HELIX G FOUR includes Start-Stop capability, allowing it to operate reliably even when voltage dips as low as 6V during engine crank. Its efficient power supply, SMD technology, and compact aluminum chassis ensure long-term reliability and stable performance in all environments.

User Convenience & Expandability

• 2-Channel PreOut allows you to expand your system with an additional amplifier
• Bass level remote (included) lets you adjust volume for channels C and D (subwoofer use) directly from the cabin
• Compact footprint and clean design with illuminated HELIX logo make installation simple and elegant

Features at a Glance

• 4-channel Class A/B amplifier with Start-Stop support down to 6V
• Smart Highlevel Input with ADEP circuit for OE radio compatibility
• Full active crossover: highpass, lowpass, bandpass, and bass boost
• Input Mode switch for flexible signal routing
• High-current MOSFET output stage for stable, powerful delivery
• PreOut for adding an external amplifier
• Remote control included for adjusting subwoofer channels (C & D)
• High input sensitivity up to 14V – ideal for factory integration
• Compact aluminum chassis with low heat dissipation
• Illuminated HELIX logo for a premium visual touch
• SMD manufacturing ensures high reliability in a small package