Originally released in the ’70s, the API 525 500 Series Discrete Compressor 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 and 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 blueprints 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 envelope tracking. Attack time is fixed, chosen to catch the fastest peaks, without “pumping.” Equally useful as a tracking, mixdown or program compressor/limiter, the 525 utilizes “vintage” dynamics control and an easy-to-use multi-function control set. The 525 has a hardwire bypass switch, balanced input and a pinout that is the same as all the other 500 series modules. Two or more 525s can be linked for multi-channel compression.The API 525 Compressor makes use of the 2510 and 2520 OpAmps and exhibits the reliability, long life and uniformity which are characteristic of all API products. Reviews There are no reviews yet. Be the first to review “API 525 Discrete Compressor” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.
