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Heritage Audio 1084

2-Channel Class A Mic Pre

Heritage Audio 1084

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Product Description for the Heritage Audio 1084

Based on the famous 1073, the Heritage Audio 1084 Microphone Preamplifier and EQ Module for 80 series rack enclosures adds additionally flexibility while preserving the original's legendary tone. The main differences are that this module includes three selectable high shelf frequencies instead of the fixed 12 kHz high shelf of the original 1073. It also features two selectable Qs in the mid band, while the hi Q is the same as in the 1073. Additionally, a five-frequency selectable passive LC low pass filter further expands the utility of the module to a wider range of recording applications.

For example, the low pass filter is useful for sweetening overhead tracks by helping reduce the harsh or brittle quality of hi hats and cymbals. It can also help remove unwanted hiss and noise from bass-heavy tracks where a flat frequency response is required. By combining the high and low pass filter, special effects can be achieved such as telephone, radio, and TV sounds that have an analog warmth which is not possible just by using plugins.



  • 80dB Class A Microphone preamplifier, HI-LO selectable minimum input impedance, balanced and floating. High gain positions show a higher impedance, ideal for old ribbon mics.
  • 50Db Class A Line preamplifier, bridging input impedance, balanced and floating.
  • All discrete Class A Ultra High Impedance J-Fet Direct Input on a high quality Neutrik Jack. The DI circuit is ahead of the Mic Input transformer, so the transformer is on when in DI mode.
  • Class A single ended, 2N3055 driven, high headroom output stage.
  • Individual Neutrik gold plated XLR connectors for microphone and line inputs.
  • Gold Plated Neutrik XLR output.
  • PAD: 20dB Mic input attenuation ahead of the input transformer to avoid overloading it.
  • HI PASS FILTER: Active all discrete Class A 3rd order Bessel, 80Hz Hi Pass Filter. 18dB/octave slope.
  • OUTPUT control to allow overloading of the preamp.
  • External linear PSU to avoid electromagnetic radiation into the audio transformers ( a.k.a. hum ).
  • Carnhill Input and Output transformers.
  • 3 gain stage, genuine B283 gain card modular construction.
  • Marconi style knobs and vintage style engraved pushbuttons.


SKU HTG-1084
Brand Heritage
Weight 2.0000
Dimensions (WxHxD) No

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