Audified Update U73b Compressor to version 2.0.1

Audified have released an update to their faithful emulation German broadcast U73b Compressor.

The new version 2.0.1 reports the latency caused by activated oversampling. Audified also improved AudioUnit compatibility with older Carbon hosts and fixed a few minor bugs.

Audified U73b Compressor is available for $134 at the DontCrack Store.

Audified U73b Compressor

About the U73b

The device was often used for mastering between 1960 and 1980. It is an all tube vari-mu compressor/limiter with adjustable release time option. Audified kept the circuit exactly as it was originally designed and only added input and output gain (before and right after compressor circuit) to help with proper adjustment of the compression. The plugin effect has been also supplemented with a VU meter and selectable side-chaining.

The compressor’s controls are very easy, but the effect of this unique device is audible at the same moment you turn it on:

Compressor/Limiter Switch

Switches between Compressor mode (Kompr), Bypass (Durchshalt) and Limiter mode (Begr). The compressor mode has lower threshold setting and very gentle increasing ratio, in opposite, the limiter mode provides higher threshold setting with higher ratio but still with smooth knee.

Release Time

The first three positions offer fixed release time, the other three positions (marked red) provide adjustable program content dependent release time option.


Allows adjustment of the input gain before the compressor/limiter circuit.


Allows adjustment of the output gain after the compressor/limiter circuit.


Selects the signal source used for controlling the gain reduction.

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