Affiliate disclosure: the "Get this deal" button is an affiliate link to the store. If you buy through it we earn a commission at no extra cost to you. Full policy
Your omnitec 436c Black Friday deal takes 67% off, bringing the OmniTec-436C compressor plugin to $19 until Nov 22, 2026. It is a vari-mu compressor from Black Rooster Audio, drawn from the Altec 436C tube compressor of the 1950s.
Black Rooster Audio adds a few things the hardware never had: extra sidechain filters, a dual mono/stereo link, a limit mode and an SC listen mode. If you're after a vari-mu compressor plugin for the bus or for single tracks, that is the feature set.
The original Altec 436C was picked up by top producers soon after its 1950s launch. The maker says its circuit went on to inspire the Fairchild and Manley vari-mu units.
It also turns up in Abbey Road history: the maker credits Geoff Emerick with using the 436C on recordings by The Beatles, Herb Alpert and Frank Sinatra.
The plugin's vari-mu stage is modeled on the hardware's circuit and characteristics. Black Rooster Audio describes the tube-based result as a smooth, mellow tone that gives a mix cohesion without taking it over.
The maker suggests vocals, strings, brass and synthesizers as sources to try it on. Here is what is on the panel:
The sidechain filters set how the compressor reacts to the signal, and SC listen lets you dial them in by ear, hearing exactly what the detector hears.
On Mac, you need OSX 10.9 or newer, with an Intel Core CPU or an Apple Silicon M1/M2 processor. M1/M2 is supported. The plugin runs in a 64-bit VST, VST3, AU or AAX host, and needs 1GB of RAM.
On Windows, it needs Windows 7 or newer and an SSE2 compatible processor, with an Intel Core CPU recommended. It runs in a VST, VST3 or AAX host, with 1GB of RAM.
Both platforms want a display resolution of 1280x1024 pixels or more.
Yes. The OmniTec-436C compressor plugin is 67% off for Black Friday, which brings it to $19. The deal runs until Nov 22, 2026. It is the full plugin from Black Rooster Audio, with the sidechain filters, stereo link and limit mode.
Black Rooster Audio adds additional sidechain filters, a dual mono/stereo link, a limit mode and an SC listen mode. The maker says its vari-mu stage is modeled on the hardware's circuit and characteristics.
It runs as VST, VST3, AU or AAX, depending on platform. Mac hosts can use VST, VST3, AU or AAX, all 64-bit. Windows hosts can use VST, VST3 or AAX. Apple Silicon M1/M2 is supported on Mac.
It is a 2-band filter with high and low filters from 100Hz up to 20kHz, shaping the signal the compressor reacts to. SC listen mode lets you hear the isolated sidechain signal after filtering.
Prices and end dates are checked at publishing time and can change, so confirm them at the store before you buy.