Heritage Audio HA73EQX2 Elite Series Dual Channel Microphone Preamp
5
4 Reviews
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The affordable HA73EQX2 of the Elite Series is a dual channel mic preamp equalizer that obtains that vintage tone thanks to modern manufacturing techniques. The HA73EQX2 Elite is made to the same specifications as the acclaimed ´73JR, ´73EQJR and DMA73 Heritage Audio models at a price never heard before.
Leveraging the expertise and reputation obtained with its popular hand wired, extremely time-consuming hand soldered series, HA is able to offer a zero compromise, high quality yet very affordable alternative to the growing entry-level brands.
A combination of mass production, lean manufacturing and modern construction techniques, minimizes hand labor and therefore its high associated costs when manufacturing takes place in Western Europe. By passing the savings straight into the end users´ pockets, Heritage Audio releases the most affordable outboard preamps and equalizers in its class up to date.
Key components to obtain a true vintage sound are indeed maintained, like the industry standard Carnhill transformers, hand wound in St Ives, England.
Manufactured in the same Spanish facilities as the rest of the HA line of products, the HA73EQX2 Elite rack mountable mic preamp equalizer presents the complete classic recording channel that, for generations, has been regarded for its rich, musical qualities and its ability to dramatically improve the sound of almost any source.
No ´73 equalizer will present the correct equalization curves without high quality capacitors and, most importantly, correct “Vinkor” type pot core inductors. More than often this type of products have these expensive inductors replaced with generic ferrite core ones or, even worst, the mid band dual inductor replaced with a single one. Never in Heritage Audio products!!, as the impact of replacing these to the eq curves is dramatic, leading to incorrect curve´s shapes and high frequency phase distortion which in no way honor the design.
The HA73EQX2 Elite employs WIMA 5% capacitors in the EQ section as well as 3 correct vintage type “Vinkor“ pot core inductors so the eq curves are virtually undistinguishable from the handmade equalizers in the HA line. Customers can expect the same sonic quality and feel they have come to appreciate from Heritage Audio.
The HA73EQX2’s preamp section features gain, output trim, -20db pad, polarity reverse, a high pass filter, and +48v phantom power. The HA73EQX2’s EQ section features a high shelving EQ, midrange EQ, low shelving EQ, a variable high pass filter, and EQ Bypass,. The HA73EQX2 comes housed in a rugged 1RU British steel and aluminum chassis and utilizes an external power supply for low noise operation.
Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for low gain ribbon mics. Input is transformer balanced and floating.
Line input impedance: 10KOhms bridging, transformer balanced and floating.
Output impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms.
Maximum output: Greater than +26.5dBu into 600 Ohms (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. For EQ ON frequency response please check the features section.
Maximum Gain: Slightly greater than 80dB.
Equivalent Input Noise: Less than -125dBu.
Output stage noise: Less than -100dBu.
Power consumption: Less than 95 mA @48VDC.
Heritage Audio HA73EQX2 Elite Series Dual Channel Microphone Preamp Specifications
Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for low gain ribbon mics. Input is transformer balanced and floating.
Line input impedance: 10KOhms bridging, transformer balanced and floating.
Output impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms.
Maximum output: Greater than +26.5dBu into 600 Ohms (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. For EQ ON frequency response please check the features section.
Maximum Gain: Slightly greater than 80dB.
Equivalent Input Noise: Less than -125dBu.
Output stage noise: Less than -100dBu.
Power consumption: Less than 95 mA @48VDC.
Customer Reviews
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Rizzo 🇺🇸
Verified Buyer
Make any source thicc!
Though I got this primarily for vocals, mics on guitar cabinets and acoustic guitar I had an unexpected surprise when I ran my Helix rack into it. I took the XLR (mic level setting) from the helix and then gained up the Heritage up to a little bit of crunch. It made that direct line something comple...
Published date
06/29/23
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Terence H. 🇺🇸
Verified Buyer
Live these so much j had to get a second pair
Heritage audio Ha73eqx2 is by far the best on the market and the closest thing ti that classic 1073 warmth with a taste of it own Im hoping to add a few more to create a console vibe these are incredible on any source !
Published date
03/07/22
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John 🇺🇸
Verified Buyer
Excellent tone enhancer - everything sounds great through it
Excellent preamp and EQ. I love how easy the EQ is to use, and the 1073 style preamp and saturation sound wonderful on everything I've used it on so far. Vocals are awesome and cut through the mix. The DI inputs are also very convenient - I've gotten great results with bass recordings through the DI...
Published date
11/08/20
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David E. 🇺🇸
Verified Buyer
The unit is perfect, went
The unit is perfect, went from box to rack to track. It sounds amazing. It works flawlessly and was made possible by American musical supplies payment options.
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