API 527A Compressor/Limiter Features Feed-forward or feed-back compression Hard or soft knee compression Patented THRUST® switch for frequency-dependent sidechain control Continuously variable, 31 position detented THRESHOLD control Continuously variable, 31 position detented RATIO control Continuously variable, 31 position detented ATTACK and RELEASE controls Continuously variable, 31 position detented OUT (output) level control 10-segment gain reduction/VU meter (GR/Output) Overload LED IN switch with soft and hard relay bypass Audio [...]