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Key Features
Product Ref: 61726
Saul Walker (The founder of API) designed the ''Proportional Q'' control in the '60s, allowing for the widening of the filter bandwidth at minimal settings whilst narrowing it at higher settings, without the need for additional bandwidth controls. This feature helps to minimise the phase-shift sound found in many equalizer units.
The 550b is based on the API's original 550 developed in the late '60's. The original 550 played a pivotal role in the history of music recording, being a prominent fixture in many recording studios. The API 550b is an updated version of the classic EQ, with an additional filter band and several new frequencies, hand-picked by the industry's finest sound engineers.
The API 500 Series focuses on high sound quality and longevity at an affordable price range. Considering most studio rigs undergo a large amount of swapping and changing between equipment, the API 500 series is designed to last, from its high quality components down to its rugged and durable design.