elysia mpressor 500 Series Compressor

87 out of 100. Incorporating 10+ ratings and reviews.


  • Discrete Class-A Topology
  • As a true elysia specialty, the audio path of the mpressor 500 is completely based on discrete circuitry and does not use any integrated circuits at all.

  • THD Boost
  • This switchable harmonics generator allows on-the-fly signal coloration and saturation effects capable of delivering a grittier flavor.

  • Auto Fast
  • Inspired by its big brothers: The switchable semi automation for a perfect attack on the basis of the value set by the user.

  • Anti Log
  • This alternative characteristic of the release curve follows an antilogarithmic course instead of the standard linear progress and produces a much more striking result.

  • Negative Ratios
  • The compression curve bends and goes back down! Heavy pumping, backward sounds, etc. – perfect for very cool compression effects…

  • Gain Reduction Limiter
  • This unique limiter is not placed in the audio path as usual, but it restricts the control voltage of the compressor instead.

  • Analog Dynamic LED Meter
  • The gain reduction meter modulates its LEDs in their brightness in order to show the action of the compressor in a truly analog way: Fast and with smooth transitions.

  • Transconductance Amplifier
  • The custom discrete gain reduction cell of the mpressor 500 provides low noise, extremely fast time constants and all the punch in the world.

  • Stepped Controllers
  • All potentiometers of the mpressor 500 have 41 steps, which is a great help for recalling your previous sessions fast and precisely.

  • Ground Layer Shield
  • One of the six layers of both PCBs is a full copper plane which helps to reduce interferences caused by electric fields.