API 525 Discrete Compressor, Re-Issue

Get Everything You Need In A Compressor With The API 525 Discrete Compressor, Re-Issue Originally released in the 70's, the API 525 is a feedback type compressor. An input (threshold) control and output (make-up gain) control are provided, along with an additional ceiling fine-tune function which can increase gain reduction (lower threshold) while simultaneously raising output level to match, so the user can alter dynamics on the fly without level changes. A compression/limit switch sets ratio at either 2:1 or 20:1. Attack time is as fast as 15u/s. Four auto release modes are offered via two switches, 0.1s, 0.5s, 1.5s, & 2.0s. A De-Ess function inserts an inverse vocal energy curve filter in the detector for effective sibilance/pop reduction. The 525 design has been taken from the original blue prints and spec control drawings from the API archives. Release times vary with frequency, with high frequency / full bandwidth content released faster than lower frequencies for natural e