is a linear phase parametric equalizer (PEQ) designed for transparent mastering, based on the legendary algorithms of Algorithmix's LinearPhase PEQ Red . Version 1.1.1, released in May 2020, is a frequent topic in audio communities due to its reputation for "invisible" spectral balancing and the highly sought-after legacy it revived. The Story: Resurrecting Audio Royalty

For years, the original Algorithmix PEQ Red was considered the "holy grail" of digital mastering EQs, known for a clarity that many engineers felt later "commodity" plugins couldn't match. However, as DAWs and operating systems evolved, these 32-bit legacy plugins became incompatible with modern 64-bit systems, leaving mastering engineers like wishing for a way to bring those precise curves back into their workflow.

to eliminate rounding errors that often plague 32 or 64-bit EQs.

: A unique feature allowing continuous adjustment of filter slopes (from near 0 to 24 dB/octave), which is impossible with classic filter designs.

collaborated with the original creators to rearchitect this technology from the ground up. The result, thEQred, isn't just a clone; it’s a modern high-resolution evolution featuring:

: Unlike its "sister" plugin, thEQorange (which is surgical and built for fixing "bad" mixes), thEQred is designed for artistic correction—adding "crystalline air" or beefing up low-mids without introducing phase distortion or temporal smear. Core Technical Specs (v1.1.1) MAAT thEQred Frequency Domain Linear Phase Equalizer