


API 550B Discrete 4 Band EQ for 500 Series
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
API 550B Discrete 4 Band EQ for 500 SeriesBased on the API 550 EQ from the late '60s the 550b is an update to the classic EQ that played a major role in the history of music recording but adds an additional filter band and several new frequencies. Incorporating API's exclusive circuitry and proprietary components (such as the legendary API 2520 Op Amp), the 550b artfully blends the past with the present. So many hit records still depend on the unique 550 sound that engineers around the world
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- Final sale items are not eligible for returns or exchanges.
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Reviewed in the United States on June 4, 2026
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Great looking and super comfortable
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