The H2 Audio 2128 "Helios" 500 Series Microphone Preamp faithfully  recreates the legendary 0011 mic preamp circuit that defined the sound of countless ‘70s rock records — now in a compact, modern format. With its punchy character, open top end, and fast transient response, the 2128 delivers the same musical warmth and headroom that made Helios the choice of Led Zeppelin, The Rolling Stones, and countless other icons.
 
Not just vintage flavor
it’s the real Helios DNA, re-engineered for today’s studios. Whether you’re tracking vocals, drums, guitars, or bass, the 2128 adds that unmistakable analog presence that jumps out of the speakers. Complete with modern refinements like phantom power, phase reverse, selectable high-pass filter, and a transformer-balanced output with level control, the 2128 gives you legendary tone with modern flexibility.
 
What Makes It Legendary
Faithful Helios DNA in 500-Series Form
The 2128 brings the iconic preamp circuit from the Helios 0011 into your Lunchbox or rack, preserving the tonal essence that powered ‘70s British rock recordings.
Ultra-Flexible Gain Staging
Offers up to 70 dB of gain (25–75 dB in 5 dB increments) with a –20 dB pad—perfect for delicate vocals or driven drums and guitars.
Transformative Input Stage
Custom transformer design delivers rich harmonic depth and unmistakable Helios warmth right at the source.
Performance-Ready Features
Onboard 48 V phantom power, phase inversion, and selectable high-pass filter (0 Hz, 40 Hz, or 80 Hz) give you instant control over clarity and phase.
Pro-Level Output Control
Transformer-balanced output stage with integrated fader for up to +10 dB extra level control — more versatile than vintage modules ever were.
 
The 2128 packs the unmistakable punch, clarity, and open top end of the legendary Helios consoles into a compact 500-series module — ready to bring the golden era of rock to your rack.