Comparison chart mpressor rack vs

Headroom

As a result of the dierent voltage rails in the 500 series format (+/-16V) and the rack version (+/-30V) the

headroom of the mpressor rack is higher:

• Rack version max level: Input +25 dBu, Output +27 dBu

• 500 version max level: Input +21 dBu, Output +22 dBu

Niveau Filter

The mpressor rack comes with the Niveau Filter EQ, generating very use-

ful and unique lter curves with a set of just two controllers. This feature

could not be implemented into the 500 series module because the space

was just not available on the front panel.

External Sidechain

The mpressor rack features external sidechain connectors which can be

activated via a button on the front panel. The 500 series module does

not have this feature as 500 series racks do not provide additional con-

nectors other than input and output as a standard.

THD Boost

As a new function, the mpressor 500 comes with the switchable THD boost function for

generating a grittier tone by the push of a button. Although the rack version also generates

more THD when being driven harder, the switchable function of the module provides more

exibility in this regard.

Stereo Link

The mpressor 500 is a pure mono compressor. It does not come with an option to

link the detectors when two units are being used for stereo. The rack version has

two identical, completely separate channels, which can be stereo linked (with

the exception of the Niveau Filter and the Makeup Gain, which need to be set

identical manually).

Stepped potentiometers

All six potentiometers on the mpressor 500 have 41 steps. Because of the more extreme

ranges of the parameters of the rack version, all potentiometers responsible for setting

the compression are not stepped in order not to miss the important in-between values.

Only the potentiometers of the audio parameters which cannot be linked (Niveau Filter

and Makeup Gain) have 23 steps for a more comfortable stereo operation.

To hear and see these two amazing compressors in action, please visit elysia’s YouTube channel: