H2 Audio 0011 Stereo Black

The H2 Audio Helios 0011/Stereo - Black captures the iconic tone and musicality of vintage Helios gear in a dual-channel rackmount format. Housed in a rugged 2U steel chassis, this unit features two complete Helios 0011 channel strips, combining the classic 2128 mic preamp circuit with the revered inductor-based EQ section-all carefully engineered to stay true to the legendary British console sound that defined countless classic recordings.

Each channel offers 70dB of gain in 5dB steps, a balanced line input, a Lustraphone input transformer, and the signature Helios EQ with selectable low and mid frequencies, fixed 10kHz high frequency, and switchable high-pass filters at 40Hz and 80Hz. With a newly added output amplifier and transformer, this version resolves a common limitation of vintage Helios units, driving 600-ohm loads with up to 25dB before clipping. Whether for vocals, instruments, or stereo mixes, this stereo channel strip delivers rich harmonic detail and punchy analog character, perfect for serious tracking and mixing setups.

• Delivers classic Helios sound with two 0011 mic preamps and EQs in one 2U rack unit.

• Features the original Helios 2128 preamp circuit with up to 70dB of gain.

• Includes inductor-based EQ with selectable low/mid bands and fixed high frequency.

• Built-in high-pass filter with selectable 40Hz and 80Hz settings.

• Phase reverse, EQ bypass, and balanced line input for flexible routing.

• Output amp with transformer drives 600 ohm loads without distortion.

• Vintage tone, updated for modern studios in a durable steel chassis.

• Comes with an IEC power cable and manufacturer warranty.

GENERAL SPECIFICATIONS:

• Product Name: Helios 0011 Stereo Channel Strip

• Colour: Black

• Format: 2U 19 inch rackmount

• Channels: Dual mono for stereo operation

• Chassis: All steel construction

MIC PREAMPLIFIER SECTION:

• Circuit: Original Helios 2128 preamp

• Gain: 70 dB in 5 dB increments

• Pad: 20 dB pad switch

• Input Transformer: Lustraphone

• Line Input: Balanced line-in section included

• Output Amp: Helios design with output transformer

• Drive Capability: Up to 25 dB before clipping into 600 ohm load

EQUALIZER SECTION:

• EQ Type: Inductor based EQ

• Bands: Low Frequency: Selectable, Mid Frequency: Selectable, High Frequency: Fixed at 10 kHz

• Features: EQ Bypass, Phase Control, Selectable High Pass Filter (40 Hz and 80 Hz)

POWER & CONNECTIVITY:

• Power: IEC connection

• Phantom Power: 48V supplied by compatible H2 Audio 8 channel rack

INCLUDED IN THE BOX:

• H2 Audio Helios 0011 Stereo Channel Strip

• IEC Power Cable

• Manufacturer Warranty

USE CASE:

• Ideal for engineers and producers seeking the authentic sound of classic Helios preamps and EQs in a modern stereo rack format for tracking and mixing applications.