H2 Audio Helios 2128 500 Series Preamp

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This classic microphone preamplifier from Helios is ready to rock your Lunchbox tracks!

The 2128 is the mic preamp circuit from the 0011 in a 500 Series package. It features the same quality preamp with 70 db of gain, 20 db pad, phase control, 48V phantom power and selectable high pass filter. Also added is a Cinemag input transformer, output amp section with transformer out and output fader.

Helios Type 69 consoles were used on countless classic recordings and have earned their way into the hearts and minds of modern enthusiasts who desire a sound and character to be heard along with their music. The folks at H2 Audio have recreated this for you in the modern day, in the popular and convenient 500 series format.


  • Gain +20dB to +70dB
  • Output infinity to +10dB
  • Hi-Pass Filter 40Hz or 80Hz selectable
  • Phase Reverse
  • Pad -20dB
  • Phantom Power +48V
  • Single Slot 500 Series
Our ONE WITH EVERYTHING ZEN WARRANTY extends the standard manufacturer warranty by one year, see our ZEN WARRANTY page for details.