API 550A Discrete 500-Series 3-Band Equalizer Direct Boxes whose sound dominated on hits

whose sound dominated on hits in the 1960's

Retro Instruments take on the classic Pultec EQP-1A3

were selected by an experienced "who's who" list of the industry's most proficient engineers

the Pacifica takes its sonic cues from the mythic Quad Eight console

attack and release controls

API 550A Discrete 500-Series 3-Band Equalizer Direct Boxes whose sound dominated on hitsForty years later, the 550A remains the standard against which other EQs are measured, and it has played a major role in the recording industry for decades. Still copied but never duplicated, the 550A became API's standard channel module EQ when the company began manufacturing consoles in 1971. With virtually all existing units spoken for, popular demand for this EQ resulted in API finally resuming production in 2004. The 550A provides reciprocal