HA6673

Name: HA6673
Price: 146.48 USD
Author: Heritage Audio

by Heritage Audio · EQ · 73-style console EQ

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HA6673 is a console-channel EQ from Heritage Audio based on the 73, with an added 66-style mid band and a Baxandall-type high shelf.

It keeps the original 73 frequencies for purists, and costs €129 (about $146).

Best for: Vocals, Mix Bus, Guitars, Keys & Synths. Genres: all genres.

Keywords: vocals, bus processing, mix bus, British console, classic, full mix, hardware emulation, 70s, inspired by, mixing, static, vintage.

What it does

HA6673 is the other plugin in Heritage Audio's 80 Series Console Channels Collection. It builds on the classic 73 by adding a 66-style mid band, aiming for what the developer calls tonal range that is "genuinely hard to beat".

Low shelf: the classic 73 low band.
Expanded mid band: a 66-style mid with extra frequency choices, while the original 73 mid frequencies stay available for purists.
Baxandall-type high shelf: a three-frequency selector instead of the original's fixed 12 kHz.
Four bands in all: laid out as a console channel.
Uses: the developer suggests it for vocals, the mix bus and full arrangements, where a wide range of tonal choices helps.

It was released on March 29, 2026. Owners of 6673, 8173 or i73 PRO hardware get the 80 Series Console Channels Collection plugins free. A 14-day demo is available.

Source: Heritage Audio product page

When to use it

HA6673 is the pick when you want 73-style console tone with a wider choice of mid frequencies, especially for vocals and full mixes. Compared with the Pultec Passive EQ Collection and Manley Massive Passive EQ it has a more focused mid band and a punchier console character rather than broad passive curves. Next to its sibling HA8173, it trades the 81's two mid bands for a single, more flexible 66-style mid, so it suits vocals and arrangements more than drums and guitars. For clean, surgical or dynamic work, Pro-Q 4 and F6 go much further.

Best for: vocals, the mix bus and arrangement-level tone shaping in a British console style.
Genres: any.
Look elsewhere if: you need surgical or dynamic EQ; Pro-Q 4 or F6 cover that.

Where to buy

Heritage Audio: $146.48 (€129 converted to USD (ECB rate, 29 Sep 2026))

Tutorials and reviews

Heritage Audio's New Neve 1073 Plugins Sound Insanely Good - HA6673 and HA8173

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