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200 Series "Helios Mic Pre"

200 Series "Helios Mic Pre"

$999.00 USD
$999.00 USD
Sale Sold out

The Helios Sound. Now in Your API Workflow.

 

Only 50 Units Exist 

 

Get the Helios Sound You’ve Been Chasing

For decades, engineers and producers have tried to pin down the “Helios” sound—that open, punchy, unmistakably powerful tone heard on countless iconic records. Now, H2 Audio brings that sonic character to your API 200 Series format.

Whether you’re tracking drums, guitars, or vocals, this limited-run mic pre captures the essence of the original Helios consoles—rich harmonics, bold midrange, and a lively top end— all while dropping seamlessly into your existing workflow.

 

The Most Iconic Mic Pre from the 70’s Golden Era

This exclusive mic pre was engineered specifically for the 200 Series slot, giving API users direct access to “Helios” sound without compromise. If you already own an API lunchbox or console, this mic pre is your next secret weapon.

-Gold plated audio toggle switches

-High-quality, ELMA gold plated rotary switches.

-Sealed, conductive plastic element pots

Technical Specs

H2 Audio '200' 200 Series microphone preamp specifications




-Toggle switches for audio are all gold plated.

-Pot (mic gain) has a conductive plastic element, sealed.

-Power rail is +/-16V (32V total) giving higher output before clipping vs the original Helios 0011 preamp.

-600 ohm drive capability up to 25dBm before clipping. Custom output transformer.




200 Mic Preamp:

Mic Input: Custom Lustraphone M10 input transformer providing 20dB of mic gain before the preamp.




PAD toggle switch: ~20dB pad

P48 toggle switch: 48V phantom power

GAIN pot: 31.5 to 70dB of mic gain. 11.5 to 50dB with pad engaged.







Analog I/O connections:

Standard 200 series input/output connections on rear edge connector.




Mechanical:

Legacy:

Height: 2.64”

Width: 1.23”




AXS:

Height: 2.64”

Width: 1.5”




Power source:

Power is provided by 200 series rack.

  • Gold Plated Switches & Toggles
  • Hand Assembled in DETROIT
  • Custom Transformer
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"I turned the knob and bam! There it was. ...I miss that"

Eddie Kramer- Legendary audio engineer & record producer, (Led Zeppelin, Jimi Hendrix, Rolling Stones, Kiss )

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A Helios Classic for Every Type of Studio

At H2 Audio, we build premium audio pieces that inspire. Explore our full range of reimagined classics, re-engineered for the modern studio. Rackmounts, Channel Strips, 500 Series, and our flagship Mic Pre's and Compressors, all built with precision craftsmanship and modeled after the original Helios units from Olympic Sound, London.

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