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Heritage Audio GRANDCHILD 670 - 500 Series Vari-MU Stereo Compressor

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£1,740.00 inc. vat
£1,450.00 ex. vat
Please contact us for availability.


The Heritage Audio GRANDCHILD 670 is a faithful re-creation of the legendary Fairchild Vari-MU compressor in 500 series format. At its core the Grandchild features 4 NOS tubes and 3 transformers providing the highly acclaimed tone and character the Fairchild is known for, now with almost no noise or distortion making it a great choice for mixing and mastering.

The grandchild features5 attack and release times, making it more flexible than the original. Progressive DC Threshold, combining control of the ratio and the knee (from hard limiting to a very smooth transparent compression).

Enjoy the sound that has blessed thousands and thousands of hits throughout the years. Feel the warmth as it hugs your tracks and makes them stand out proudly from all the rest. The GRANDCHILD has the soul of its predecessor, assuring that the king of tube compression sound, that influenced hundreds and hundreds of classic tunes, is now available for you to craft your very own masterpieces!


  • The Fairchild for the rest of us.
  • A true recreation of the classic Fairchild sound in a convenient and affordable 2-slot-unit 500 series module.
  • Real Vari-MU compression powered by 2 NOS military grade 6BA6 tubes per channel and 3 custom made transformers at its core.
  • 5 Attack and Release times have been made even more flexible than in the original unit.
  • Immediate access to the continuously variable slope.
  • Clean, intelligent design to guarantee many years of
  • use.