H2 Audio 5011 “Helios” 3-Band EQ

The H2 Audio 5011 brings the legendary Helios EQ sound into the 500 Series format. Based on the exact same inductor-based circuit found in the 0011 module, the 5011 offers the unmistakable musicality and vintage tone that defined a generation of recordings — now in a modern, modular design.

Designed for engineers who demand sonic character and precision, the 5011 features an electronically balanced input and a transformer-balanced output with a dedicated amplifier circuit. Whether you’re sculpting vocals, shaping guitars, or adding presence to your mix bus, the 5011 delivers the rich, harmonically detailed EQ curves that made Helios consoles studio legends.

Key Features:

• True Helios EQ circuit – Identical to the EQ section from the H2 Audio 0011 module
• 3-band inductor-based EQ – Musical low, mid, and fixed high-frequency controls
• Transformer-balanced output – Adds classic analog warmth and punch
• Electronically balanced input – Designed for seamless 500 Series integration
• Classic British console tone – Ideal for tracking, mixing, and mastering

Specifications

• Format: 500 Series module
• Input: Electronically balanced
• Output: Transformer balanced with amp circuit
• EQ Bands: Low, Mid (selectable frequencies), Fixed High (10kHz)
• Based on: H2 Audio 0011 EQ section