Heritage Audio Elite Series HA73EQX2 Dual Channel Full Rack Microphone Preamp with EQ

SKU: HAHA73EQX2 MFR: HA73EQX2
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Key Features

  • Capture pristine audio with this dual channel Heritage Audio microphone preamp.
  • Enjoy versatile sound shaping with the integrated EQ for studio-quality recordings.
  • Experience ultra-low noise performance, perfect for critical recording applications.
  • Achieve a wide range of tonal colors with an impressive 80dB+ gain range.
  • Optimize your signal chain with selectable input impedance for various microphones.
  • Rely on robust build quality, ensuring years of dependable performance in your studio.
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Special Order?Estimated to Ship: 08/16/2025
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Heritage Audio HA73EQX2 Specifications

  • Microphone Input Impedance

    HI, 1200Ohms minimum
    LO, 300Ohms minimum

  • Line Input Impedance

    10KOhms bridging, transformer balanced and floating

  • Output Impedance

    Less than 75Ohms, transformer balanced and floating, to drive a load of 600Ohms

  • Maximum Output

    Greater than +26.5dBu into 600Ohms (internally terminated)

  • THD

    Less than 0.025% at 1kHz, Less than 0.05% at 100Hz

  • Frequency Response

    20Hz (+0.3dB) to 20kHz (-0.2dB). EQ Off

  • Maximum Gain

    Slightly greater than 80dB

  • Equivalent Input Noise

    Less than -125dBu

  • Output Stage Noise

    Less than -100dBu

  • Power Consumption

    Less than 190mA at 48VDC

  • UPC Code

    750536937157

About Heritage Audio HA73EQX2

Because professional audio quality is paramount, the Elite Series HA73EQX2 Dual Channel Full Rack Microphone Preamp with EQ by Heritage Audio is a game-changer. Building on the success of its single channel predecessor, the HA73EQX2 Elite now offers double the functionality with two mic pre/equalizers in one rack unit. This dual EQ setup enhances your recording studio's capabilities, delivering premium audio quality synonymous with the Elite Series.

The HA73EQX2 Elite adheres to the same high standards as the renowned '73JR, '73EQJR, and DMA73 Heritage Audio models, but at an unprecedented price point. This is achieved through a blend of mass production, lean manufacturing, and modern construction techniques that minimize labor costs associated with Western European manufacturing. The savings are passed directly to you, making this the most affordable outboard preamp and equalizer in its class.

Despite its affordability, the HA73EQX2 Elite does not compromise on vintage sound quality. It features industry-standard Carnhill transformers, hand-wound in St. Ives, England. Manufactured in Spain alongside the rest of the HA product line, this rack-mountable mic preamp equalizer offers a classic recording channel that has been celebrated for its rich, musical qualities and its ability to enhance almost any audio source.

The HA73EQX2 Elite stands out with its high-quality capacitors and correct "Vinkor" type pot core inductors, essential for accurate equalization curves. Unlike other products that replace these expensive inductors with generic alternatives, Heritage Audio maintains these key components to avoid distortion and incorrect curve shapes. The HA73EQX2 Elite uses WIMA 5% capacitors in the EQ section and three correct vintage type "Vinkor" pot core inductors, ensuring the EQ curves are virtually indistinguishable from the handmade equalizers in the HA line.

The preamp section of the HA73EQX2 features gain, output trim, a -20db pad, polarity reverse, a high pass filter, and +48v phantom power. The EQ section includes a high shelving EQ, midrange EQ, low shelving EQ, a variable high pass filter, and an EQ bypass. The HA73EQX2 is housed in a sturdy 1RU British steel and aluminum chassis and uses an external power supply for low noise operation.

The Elite Series HA73EQX2 Dual Channel Full Rack Microphone Preamp with EQ is a testament to Heritage Audio's commitment to delivering high-quality, Western European made gear at the best value. With features like a 20dB mic pad push button, output attenuator, phantom power switch, input gain switch, mid peak band, EQ on/off switch, line push button, bass shelf, D.I. input, HI shelf, phase push button, mic input impedance, and high pass filter, it's designed to enhance your musical experience.

Heritage Audio HA73EQX2 Features

  • Higher gain positions gradually have greater impedances, optimum for low gain ribbon mics
  • Input is transformer balanced and floating

Product Documents

User Manual

Key Features

  • Capture pristine audio with this dual channel Heritage Audio microphone preamp.
  • Enjoy versatile sound shaping with the integrated EQ for studio-quality recordings.
  • Experience ultra-low noise performance, perfect for critical recording applications.
  • Achieve a wide range of tonal colors with an impressive 80dB+ gain range.
  • Optimize your signal chain with selectable input impedance for various microphones.
  • Rely on robust build quality, ensuring years of dependable performance in your studio.