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H2 Audio 0011/Stereo Two-Channel Mic Pre/EQ
The H2 Audio 0011/Stereo Two-Channel Mic Pre/EQ is a stereo pair of legendary 0011 mic pre/EQs housed in a heavy-duty 19" steel chassis. Upgrading the power and headroom allow for a higher output before clipping Delivering warmth,  punch, and plenty of headroom the H2 Audio 0011/Stereo takes everything that makes the original Helios 0011 legendary and doubles it. Packed into a rugged 19” rackmount chassis, this unit houses two complete 0011 mic pre/EQ channels — giving you the perfect tool for stereo tracking, dual mono setups, or mix bus shaping.
 
Each channel features the unmistakable Helios input stage, custom Lustraphone transformer, and inductor-based EQ design that helped define the sound of British rock in the ‘70s. With upgraded 32V rails for greater headroom, transformer-balanced outputs, and modern gold-plated connectors, the 0011/Stereo delivers classic tone with rock-solid reliability. Whether you’re running drum overheads, acoustic guitars, or stereo keyboards, this is the Helios sound in a powerhouse dual-channel rack.

H2 Audio 0011/Stereo Two-Channel Mic Pre/EQ

$3,999.00Price
Quantity
This product has about a 2 week lead time from the manufacturer

  • Two Channels of Helios Heritage

    - Dual 0011 mic pre/EQ circuits in a single 2U rack — ideal for stereo sources or parallel processing.

    Authentic Helios Input & EQ

    - Custom Lustraphone input transformer and inductor-based EQ with selectable LF/MF frequencies and fixed 10kHz shelf.

    Upgraded Power & Headroom

    - 32V rails provide higher output before clipping compared to vintage Helios modules.

    Rugged, Reliable Build

    - Steel 19” rackmount chassis with Neutrik gold-plated XLR connectors for long-term durability.

    Premium Components

    - Gold-plated ELMA rotary switches, gold toggle switches, and sealed conductive plastic pots throughout.

  • - Format: 19” rackmount, 2U height

    - Channels: 2 (dual mono or stereo pair)

    - Mic Gain: 25–75 dB in 5 dB steps

    - Input Pad: –20 dB

    - Input: Line/Mic via Neutrik gold-plated XLR (female)

    - Output: Transformer-balanced, Neutrik gold-plated XLR (male), 600 Ω drive, +25 dBm max

    - EQ: 3-band, inductor-based (LF: 60–300 Hz boost / 50 Hz cut; MF: 0.7–6 kHz; HF: fixed 10 kHz shelf)

    - High-Pass Filter: 0 Hz / 40 Hz / 80 Hz

    - Phase Reverse: Yes

    - Construction: Heavy-duty steel chassis

    - Controls: ELMA gold rotary switches, gold toggle switches, sealed conductive plastic pots

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