Filtek MK3 by Antelope Audio is a three-band equaliser plugin modelled after a precision EQ originally designed in the 1970s to meet the rigorous standards of the German Institut für Rundfunk Technik (IRT). Known for its unusually modern, clear sound for its era, this plugin delivers precise, transparent frequency shaping with a refined analogue character.

Broadcast-Standard Precision

Built to exacting IRT broadcast specifications, Filtek MK3 provides clean, accurate EQ adjustments with a sound that remains clear and detailed even at extreme settings. Its three bands deliver smooth, predictable curves that are well-suited for both corrective and creative applications.

Clear, Modern Sound

Unlike many vintage-inspired equalisers that emphasise warmth and colouration, Filtek MK3 stands out for its transparency and clarity. It shapes frequencies without adding unwanted artefacts, making it an excellent choice for sources that need precise tonal adjustment while maintaining their natural character.

Versatile Professional Tool

Filtek MK3 is effective on individual channels, group buses, and mastering chains. Available in AAX, VST3, and AU formats for macOS and Windows, it is also available as a Synergy Core real-time effect.