VCA compressor/limiter for Lunchbox and 500 Series with comprehensive controls including variable attack, release, ratio, and output gain controls. The unit also includes API’s patented ‘Thrust’ circuit, first offered on the 2500 Stereo Bus Compressor. A 10 segment LED meter is switchable between gain reduction and output level.

500 series compressor inspired by the legendary 2500 and featuring API’s renowned 2520 discrete Op Amps, Thrust control and choice of Feedforward or feedback compression.