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GRANDCHILD 670
Art.-Nr.: HA-GRANDCHILD670
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Formed in 2011 by group of sound and electronics engineers with +45 years of combined experience in the Pro Audio world, Heritage Audio brings a new flavor to the high end studio equipment market. Combining a vintage look and sound with key features not found in ancient equipment, Heritage Audio adds some spice to 1970s Series 80 consoles and outboard racks, expanding the sonic palette of any professional or home studio.

Overview

500 Series Vari-Mu Stereo Compressor

The GRANDCHILD 670 ist first ever stereo Vari-Mu compressor in a 2 slot 500 series module, based on the renowned Fairchild and Heritage Audio’s own HERCHILD model 670. Heritage Audio has undertaken an unprecedented engineering effort to encapsulate all the charm of the HERCHILD 670 into a more affordable unit.

The GRANDCHILD 670 is a great option for mixing and mastering. With 4 NOS tubes and 3 transformers at its core, the GRANDCHILD 670 adds warmth and punch to any track with virtually no noise or distortion. 5 Attack and Release times make it even more flexible than in the original unit. Progressive DC Threshold, combining control of the ratio and the knee allowing a wide range of dynamic processing, from very smooth transparent compression to hard limiting.

Enjoy the sound that has blessed thousands and thousands of hits over the years. Feel the warmth as it embraces your tracks and makes them proudly stand out from the rest. The GRANDCHILD 670 has the soul of its predecessors, Fairchild and HERCHILD 670, ensuring that the best tube compression that has influenced hundreds and hundreds of classic tunes is now available as a 2 slot 500 series module!

Product Details

  • Vari-Mu Stereo Compressor
  • 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.
Tubes
4x 6BA6 NOS
Input Impedance
15 kΩ
Output Impedance
50 Ω
Output Level
+29 dBu
Frequency Response
20 Hz to 20 kHz ± 0.5 dB
Noise
Less than -78 dBu
Harmonic Distortion
Less than 0.5 % at any level up to +24 dBu output (no compression)
Power Supply
+16V/-16V, slightly over 200mA per rail per slot
Dimenstions (H x W x L)
133 x 180 x 75 mm (2 slot 500 series)
Weight
1.12 kg
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