EQ & Filtering

LiNTECVintage Program Equalizer Features Vintage Pultec-Style Program Equalizer Does “The Pultec low-end Trick” Designed around the vintage 1731 op-amp Transformer-coupled Balanced TRS Input...

RPQ160b Parametric Equalizer The RPQ160b is a 4 band parametric equalizer with high and low shelving filters and is capable of processing frequencies from 20Hz to 20KHz. These sort of units are for...

ONE CHANNEL VINTAGE STYLE 3-BAND EQUALIZER. The class-A circuit used in the EQ-73 MKII is similar to the eq section in the classical 1073 module, without the high pass filter. Additional frequencies...

A 4-band EQ unit based on the eq section in the classical 1081 NOW WITH BALANCED CONNECTIONS FOR SELF CONTAINED OPERATION! A 230V power adaptor is included The class-AB equalizer circuit used in the...

ULTRAVIOLET Stereo Equaliser 500 Series equalisation in a new light Sculpt instruments, enhance busses and fine-tune masters ULTRAVIOLET Stereo Equaliser (UV EQ) takes the acclaimed minimum...

Heritage Audio “MOTORCITY EQualizer” Occasionally, something so special arrives, it turns the music industry Upside down (and inside out). That is why Heritage Audio is incredibly pleased to offer...

_HYPERION is fully analog parametric EQ with +24dBu of headroom. It features a lot of innovative improvements that no other processor on the market provides. Its innovative design utilizes 15 VCAs...

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...

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...