API 550A Discrete Classic 3 Band Parametric Equalizer - 500 Series Classic ModuleFew equalizers enjoy the respect and admiration of the coveted API 550A. Designed by the now legendary Saul Walker in the late 60's, the discrete 550A was first used as a modular OEM equalizer. As the industry rapidly embraced the sonic quality of the 550A, it quickly found it's way into many custom console designs by Frank DeMedio and other leading engineers. Many of these consoles are still in use today. Forty years later, the 550A remains the

These screws are finished in black oxide

This permits combining stereo signals into mono inputs

The Original Series tripod speaker stands from Ultimate Support are the industry standards that you've seen on stages for decades

Extension Jax jacks are connected to the end of a cable

Easy to order - a single part number includes all needed accessories

automatic mixing and comprehensive signal processing on every input and output

This results in exceptional rejection of handling noise without any loss of low frequency response

10 bands of API proprietary equalization

standard 35 mm DIN rail

The adaptor emits heat when operating at its maximum capacity for an extended period of time

XLRM and TRS connector options

The nine Zone Controllers use analog DC voltage to provide logic control ranging from zone