Classic Recording Studio Equipment

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Heritage Audio Herchild Model 660

Heritage Audio Herchild Model 660 Variable-Mu Compressor

The demand for that analog charm to enhance your mixes continues to rise, and Heritage Audio has provided the solution with the Heritage Audio Herchild Model 660 Variable-Mu Compressor.

Heritage Audio Herchild Model 660 Variable-Mu Compressor Details

Heritage Audio Herchild Model 660 – Initially crafted for broadcasting and the creation of lacquer masters for vinyl albums, the Fairchild compressor gradually transformed into arguably the most renowned and coveted compressor in history. Manufactured towards the end of the 1950s, only a limited number were actually produced. Presently, several decades later, a small fraction of those that remain have been adequately maintained and are still capable of performing their intended function.

The lush, impactful, and warm auditory experience it offers has graced thousands of successful tracks and has consistently maintained its allure. Contrary to fading away, its desirability is as potent today as it was upon its initial introduction, if not more so due to the prevalence of the digital era. The demand for that analog magic to enrich your mixes continues to grow, and Heritage Audio presents the solution with the Heritage Audio Herchild Model 660.

The Heritage Audio Herchild Model 660  stands as a Tube-based Variable-Mu compressor, meticulously replicating the original design and utilizing identical components. Packed with 11 tubes and 5 transformers, it functions at elevated voltage levels, ensuring a robust and expert outcome.

This compressor yields a pristine, transparent audio quality devoid of any unwanted artifacts or pulsating effects. Moreover, when pushed to its limits, it has the capacity to generate a more pronounced, weightier, and richer impact, enriched with supplementary harmonics.

While the original remains a timeless classic, functioning in the 21st century has led us to anticipate certain enhancements. The Heritage Audio Herchild Model 660 ensures that these expectations are met admirably.

The six Attack and Release time options have been meticulously replicated within the TIME CONST section, along with the preservation of its all-tube side chain circuit, allowing for meticulous control.

A novel addition is the introduction of the progressive ratio, facilitated by the DC THRESHOLD. This exceptional curve adjustment amalgamates control over both the ratio and the knee, providing a seamless transition from firm limiting to exceptionally smooth and transparent compression settings.

Addressing modern needs, the SC FILTER comes equipped with four selectable frequencies designed to diminish the influence of lower frequencies on the signal – an essential feature in today’s context.

Specifications

Released

  • Input Impedance: 2 kΩ.
  • Output Impedance: 600 Ω.
  • Output Level: +30 dBu clipping point.
  • Frequency Response: 20 Hz to 20 kHz ± 1 dB.
  • Signal To Noise Ratio: 120 dB.
  • Self Noise: Less than -82 dBu.
  • Harmonic Distortion: Less than 1% at any level up to +18 dBu output (no limiting).
  • Dimensions (W x H x L): 482 mm x 134 mm (3 Rack units) x 200 mm.
  • Weight: 7.365 Kg.

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The details provided above are drawn from historical documents like advertising brochures or user manuals. They’re shared without bias or review. This info is given solely for your consideration, helping you gauge its usefulness to you.

Heritage Audio Herchild Model 660

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