The API 500 Series EQ Plug-In Collection for UAD-2 hardware and Apollo interfaces delivers an authentic recreation of the legendary API 550A and 560 Series equalizers. These plugins capture the punch, clarity in low frequencies, and tight imaging that made the original units staples in professional studios. Meticulously modeled from pristine early 1970s hardware, the collection offers an accurate and detailed emulation that preserves the character and sonic qualities revered in classic recordings.

Featuring unique filter shapes and complex band interactions, the 550A and 560 EQs bring musical filter amp distortions and clipping behaviors that contribute to their distinctive sound. The 550A parametric EQ provides three overlapping bands and a flexible band-pass filter, making it an ideal choice for enhancing drums and guitars within a mix. The 560 graphic EQ offers ten bands with API's proprietary 'Proportional Q,' which adjusts bandwidth dynamically to provide more natural and precise control over tonal shaping.

This collection also includes artist presets from notable producers such as Ross Hogarth, Darrell Thorp, and Vance Powell, helping users achieve professional results inspired by iconic records. Whether tracking or mixing, these plugins offer full-circuit emulations that retain the musicality and warmth of the original hardware, allowing musicians and engineers to impart classic API character to their projects with ease and precision.