Waves Audio
API 550
Modeled on the late 1960's legend, the API 550A EQ provides reciprocal and repeatable equalization at 15 points in 5 steps of boost, divided into three overlapping ranges. Its high and low frequency ranges are individually selectable as either peaking or shelving, and a band-pass filter can be inserted independently of all other settings.
The 550B, with its renowned four overlapped EQ bands, is invaluable as both a problem solver and a sweetening device. With 7 switchable filter frequencies spanning up to 5 octaves per band, the 550B's "Proportional Q" automatically widens the filter bandwidth at minimal settings and narrows it at higher settings. It even lets you undo previous processing, affect or even reverse tonal modifications. With their vast range of tonal possibilities, the API 550A and 550B are a pair of versatile EQs with that one-of-a-kind API sound.
Modeled vintage EQ plugins
Developed in association with API
API 550A: 5 selected frequency centers per band
API 550A: Maximum 12 dB of boost/cut per band in 2-3 dB steps
API 550A: "Proportional Q" narrows filter Q at extremes High headroom +30 dB clip level
API 550B: 7 selected frequency centers
API 550B: 12 dB of boost/cut per band
API 550B: Bands 1 and 4 offer shelf/peak switching
API 550B: High headroom +30 dB clip level
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