VCA compressor

A VCA compressor is a kind of compressor that makes use of modulation. These compressors often have the typical compression parameters: attack, release, ratio, threshold, knee. They’re often used for bus tracks.

Below are some famous VCA compressors.

API 2500

  • Very versatile!
  • “Colorful”: even when threshold = +20 dB and bypassing compression, there’s still distortion in the signal
  • Originally marketed as a bus compressor: you’ll often find it on a stereo bus or master bus
  • Excels as a drum bus compressor too
  • Tip: Useful for bringing down the cymbal level relative to snare + kick in OH mics using its “Loud” mode
  • Has some sort of “aggressiveness” to it

dbx 160

  • Alternative models: 160a, 160xt
  • Originally designed with a hard knee
  • Can be used downwards or upwards
  • Quick attack and release
  • Good for bringing out “punch” on drums
  • Good on bass
  • Has an “aggressive” character – not very subtle

SSL 4000 G

The SSL 4000 G is actually a full console, but it includes a compressor.

  • Also versatile
  • Has a “transparent” character
  • Is a mix bus compressor

Notable plugins

API 2500:

dbx 160:

SSL 4000 G: