elysia xpressor 500 Series Stereo Compressor


91 out of 100. Incorporating 70+ ratings and reviews.

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elysia xpressor 500 Series Stereo Compressor

This 500-series version of elysia's xpressor rackmount is a stereo compressor based on a Class A discrete circuitry. Its circuitry makes its transistors always conductive resulting in less crossover distortion and giving it a wide, open and punchy sonic base.

This universal compressor's switchable semi-automation lets you set the perfect attack that influences the attack parameter on short and loud impulses.

Its log release feature follows a logarithmic course to provide a gentle kind of compression instead of a standard linear progress.

The sidechain filter helps avoid pumping and over-compression when there's a lot of low energy in the mix.

The Warm Mode switch allows the alteration of the frequency spectrum, harmonics and transient response that gives the sound a saturated richness.

Its Gain Reduction Limiter is used to limit the signal in the sidechain and controls the maximum amount of gain reduction the compressor is allowed to make.


  • Controls: Threshold, Ratio, Attack, Release, Gain, Mix, Gain Reduction Limiter, Sidechain Filter
  • Input/Output Impedance: 10 kOhm / 68 Ohm
  • Maximum Input Levels/Output Levels: +21 dBu
  • Attack: 0.01–120ms
  • Release: 5–1.300ms
  • Ratio: 1:1, 1:2, 1 to infinity
  • Threshold: -42dB to +22dB
  • Power Requirement: 125 mA @ +/- 16 volts DC
  • Weight: 4.3 lbs


Many reviewers gave good reviews for this compressor and its flexible compression characteristics. Many found its Warm mode switch handy when it comes to changing the mix from a transparent sound to a warmer effect. Some praise its highlight feature which is its Gain Reduction Limiter. In his Sound & Recording review, Hannes Bieger found this useful for vocals where the Gain Reduction limiter can be used to "compress the verses adequately, while it still doesn't squash the chorus which is usually sung with more energy/volume." Its Auto-Fast feature was also a favored by some users. Its Negative Ratio setting is another feature that makes this compressor flexible for compression experimentation. As mentioned by Henning Schonvogel from his Beat review, this compressor's Fast Attack and logarithmic release function were "a great help for stronger processing without losing too much of the original dynamics".


It's a bit pricey for someone looking for their first hardware compressor, but given its stereo features it does represent good value for more advanced users.


This compressor is a good choice if you are looking for an all-around versatile compressor with a different set of compression options. It's great choice if you are looking for a clean sounding compressor for your mix bus.

NB: There are more highly rated options available which you will find in our guide to The Best 500 Series Compressors.