API 550A Discrete 500-Series 3-Band Equalizer Same Day Delivery I'm a big believer in

I'm a big believer in listening to tracks across a wide range of speakers

but they wanted MORE

generous headroom

wind noise and mechanical vibration at sub sonic frequencies

but it ended up with its own very special sound

API 550A Discrete 500-Series 3-Band Equalizer Same Day Delivery I'm a big believer inForty 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