EQ & Filtering

xfilter Mastering Edition 4-Band Analog Stereo Equalizer Stereo Link and Precise Control Range It all started with Bob Katz’s idea of tweaking his own xfilter. So Ruben surely took this pretty...

70 YEARS AFTER ITS CREATION, THE BAXANDALL EQ GETS A DEFINITIVE UPDATE. Baxandall equalizer’s topology, introduced to the public by Peter Baxandall in 1952, was a very ingenious way of obtaining...

The PEQ-510A is our affectionate take on the original classic American EQP1 program equalizer, built for API's popular 500-series format.  The module is capable of smooth highs and a dauntingly vast...

Phoenix Audio's Gyrator EQ  is one of today's most unique and musical EQs, allowing an incredible variety of sounds useful for everything from clean high-headroom mix buss tone shaping to deep...

Drop a PEX-500VIN "Vintage Edition" all discrete equalizer into your API 500 Series compatible rack and you're in for a real sonic treat. Built around a classic Pultec parametric EQ design, the...

This two channel equaliser had been designed to be as much at home in tracking individual instruments or sitting across a stereo mix buss to equalise the final mix. As with other units of ours, such...

Vintage Tube Amplifiers and Custom-Designed Transformers set the soundstage. True Passive Equalization creates Bountiful and Musical Equalization curves. The new RETRO 2A3 is designed as an ultra...

The xfilter is a true linked stereo equalizer with the heart and soul of our flagship EQ, the museq. It gives you the expensive sound of an all class-A equalizer in a surprisingly affordable package,...

The nvelope is a powerful audio processor capable of making subtle or drastic changes to a sound by providing control over its attack and sustain characteristics. This is extremely useful for...

The karacter is a box full of vibrant colors. It covers a complete spectrum including mastering-grade saturation, tube-inspired distortion and glorious destruction. Gone are the days when only racks...

This analog EQ is a combination of premium sound shaping capabilities with optimally matched parameters and the highest quality components, enabling the user to find musical results quickly and...

The Chandler Limited TG12345 MKIV equalizer is a handmade, fully discrete, mono, single space module, designed for the 500 Series format. The TG12345 MKIV EQ for 500 Series, inherits from Chandler...