u73b Compressor
"The German Broadcast Legend"
Faithful emulation of the German broadcast compressor/limiter unit U73b. 2nd generation of the famous plug-in
Software product, electronic download, immediate delivery.
Uses iLok protection system. The USB dongle is not required. More info
Exact model of valve circuits
Plug-in in AAX, Audio Unit and VST format compatible with all major audio workstations
This effect offers advanced calibration (headroom adjustment) - the relation between the digital and analog levels.
Compatible with MacOS and Windows

Highlights

The quality and uniqueness of its sound and the inaccessibility of the original device makes U73b Compressor plug-in hitting the top ranks of the producers' wish lists.

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Award-winning plug-in
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Precise valve circuit model
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Faithful tube sound
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External side-chain
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Auto Output parameter
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Oversampling

The History

The device was often used for mastering between 1960 and 1980. It is an all tube vary-mu compressor/limiter with adjustable release time option. We 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.

Ordinary Compressor

There are many models of vintage compressors around. The sound and control of the original devices with legendary brand names from one era and one region were great, so it is good to have the originals or software models in your studio. But there is quite significant number of famous recordings where a different gear was used.

U73b

The glory of U73b appeared simultaneously with the glory of the first very famous rock bands. Most of them recorded in Europe and although some studios used American compressors, a significant number of the recording used U73b or very similar products. U73b may bring not only some required diversity to your recordings, it brings the sound tied with the golden era of rock music in Europe.

Controls

 

  • Compressor/Limiter switch – is the upper U73b knob and it switches between Compressor mode (Kompr), Bypass (Durchschalt) and Limiter mode (Begr). The compressor mode has lower threshold setting and very gentle increasing ratio, in opposite, the limiter mode provides a higher threshold setting with a higher ratio but still with the 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.
  • IN – adjust input gain before the compressor/limiter circuit
  • OUT – adjust output gain after the compressor/limiter circuit.
  • Key input – selects the signal source used for controlling the gain reduction
  • HPF – U73b is a vintage device and as such it may not meet present mastering demands. We added a bass management button that simply switches between original sound and desired modern sound (without low frequencies bypass).

 

Technical info

System requirements of the selected product. For some effects and applications, we have versions compatible with older systems. Please visit the Downloads page and browse the available versions if your system is older than specified here.

Mac OS X 10.9 - Mac OS X 10.13
AAX 32b, AAX 64b, AU 32b, AU 64b, VST2 32b, VST2 64b, VST3 32b, VST3 64b
Windows 7 - Windows 10
AAX 32b, AAX 64b, VST2 32b, VST2 64b, VST3 32b, VST3 64b

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