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Heritage Audio Herchild 670

Item: REC0016042-000
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Vari-Mu tube compressor based on the Fairchild 670, with side chain filter, VU meter and switchable DC threshold, 22 tubes.  All product info

Product variations

Heritage Audio Herchild 660

Heritage Audio Herchild 660 Product Image
  • Manufacturer: Heritage Audio
  • Hardware type: Compressor/Limiter
  • Amplifier principle: Tube
  • Operation: Vari-Mu
  • Number of channels: 1x1
  • ...
£ 4,737.00
£ 8,613.00
£ 8,599.00 / 1 STÜCK,  incl. VAT, incl. Shipping Costs
available soon, estimated to be in stock: Apr 29, 2024
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Product information - Heritage Audio Herchild 670

A new look for the world's most famous compressor!

  • 2-channel, completely tube-based variable-mu compressor
  • Modern replica of the legendary Fairchild 670
  • Equipped with 22 tubes and 9 transformers operated at high voltage
  • Side chain filter
  • Direct access to the infinitely variable DC threshold, which can be used to influence the compression ratio and working curve
  • All 6 original Attack and Release settings can be switched
  • Easy tube replacement via exposed tube chassis
  • Illuminated VU meter
  • 19" device with 6U installation height
  • incl. accessories: mains cable

Classic reissued

The Herchild 670 is a single-channel tube-based variable mu compressor inspired by the legendary Fairchild 670. Not only the external appearance, but also the internal components are in no way inferior to the original. The Herchild 670 houses a total of 22 tubes and 9 transformers, which are operated with high voltage. This results in a clean, transparent sound without annoying artifacts. In addition, the device can also produce a heavy and dense effect with the overtones of the audio signal. The fact that the compressor, like the original, works with a gradually developing ratio curve means that no fixed ratios can be specified for the threshold, but there are four threshold curve options that can be set using the large "DC Threshold" rotary control. The amount of compression is adjusted using the " AC Threshold" control. The attack and release times on the Herchild 670 are controlled via a rasterized rotary potentiometer with 6 time constant presets. Position 1, for example, corresponds to an attack time of 0.2ms and Release of 0.3 seconds. The device also has a side chain filter with four setting options at 50Hz, 100Hz, 200Hz and 350Hz and offers four different operating modes:"IND" for individual operation of both channels,"LINK" for stereo operation, "LAT VERT" for mid-side (upper channel mid, lower channel side signal) and "LAT VERT LINK" for mid-side linked.

Technical data:

  • Frequency response: 40Hz - 15kHz, +/-1 dB
  • Input impedance: 2kΩ
  • Output impedance: 600Ω
  • Output level: +4 or +8VU (+30dBu clipping point)
  • Self-noise: below -82dBu
  • SNR: 120dB
  • Harmonic distortion: less than 1% up to an output level of +18dBu (no limiting)
  • Sidechain filter switchable at 50Hz, 100Hz, 200Hz & 350Hz
  • Input transformer: AMI
  • Output transformer: CineMag
  • Input: 1x XLR 3-pin (balanced)
  • Output: 1x XLR 3-pin (balanced)
  • Dimensions (W x H x D): 482mm x 265mm x 200mm
  • Weight: 13.3kg


Features:

  • Manufacturer: Heritage Audio
  • Hardware type: Compressor/Limiter
  • Amplifier principle: Tube
  • Operation: Vari-Mu
  • Number of channels: 2x2
  • Format: 19"
  • Max. Gain in db: 12
  • Ratio values: Vari-Mu
  • Attack value: 0,2ms - 0,8ms
  • Release values: 0,3s - 5s
  • Blend control: No
  • Side Chain-Filter: 50Hz, 100Hz, 200Hz & 350Hz
  • Side Chain-Insert: No
  • Saturation effect: Tube
  • Equivalent input noise in db: -82
  • Transformer balanced: In & Output
  • Transformer manufacturer: Ami + CineMag
  • Power Adapter: Internal
Heritage Audio Herchild 670 Product ImageHeritage Audio Herchild 670
£ 8,613.00

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