Get the Phoenix Audio DRS-EQ 500 series module here: https://www.sweetwater.com/store/detail/DRSEQ500--phoenix-audio-drs-eq-500-4-band-eq
The Phoenix Audio DRS-EQ/500 employs the Gyrator EQ circuitry originally developed in the 1970s — a decade many engineers consider to be the golden age of solid-state audio electronics design. Designed to emulate the active inductor equalizer circuits used in legendary large-format recording consoles of the era in a quieter, cooler-running, and more cost-effective design; sweet-sounding and musical Gyrator EQ is ideal for a range of tasks that include high-headroom mix buss tone shaping, deep frequency sculpting, and creamy Class A saturation. The Phoenix DRS-EQ/500 is a 4-band affair with a 6dB/octave 80Hz highpass filter that can be deployed (à la Pultec) against bass boosts for an added palette of unique EQ curves.