U78 Saturator
Valve plug-in based on the circuitry of the famous vintage German U73b Compressor allowing saturation of an exact band.
Software product, electronic download, immediate delivery.
Exact model of valve circuits
Uses iLok protection system. The USB dongle is not required. More info
Plug-in in AAX, Audio Unit and VST format compatible with all major audio workstations
Compatible with MacOS and Windows
This effect offers advanced calibration (headroom adjustment) - the relation between the digital and analog levels.


U78 Saturator gives you a chance to colour the precisely selected band with the circuitry of U73b Compressor. Intended to be used on bass, drums and vocals, but creativity knows no boundaries.

Seriously satisfying saturation
Circuitry of the famous U73b Compressor
Automatic output gain control
Beautifully musical tube sound
Precise control over saturated band

The Creation

Almost anything is possible in the digital world. With the right skills and technology, you can create absolutely anything you like... like the U78 Saturator. So we took the circuitry of the legendary U73b compressor and played around a bit to come up with some seriously satisfying saturation!

Vintage modeling

We admire the range of the vintage gear which is impressive but limited. We admire the new analog gear bringing new sound colors and workflows to the audio production world. Modern designs sometimes copy the old gear, but generally, these two worlds are disconnected and the value is not combined.

More than modeling

In U78, we mixed the vintage circuits value, the modern analog design and the software modeling. We performed changes in the vintage device circuitry so it can be used for completely different purposes than the original. And we have immediately created a software model of the result.

U78 Saturator Controls


  • Gain - adjusts the input gain of the saturation circuit. (The higher the settings, the richer the sound that can be achieved.)
  • HiPass - sets the cut-off frequency of the high-pass filter, which comes before the saturation circuit in the signal path. (The range is from 30 Hz to 800 Hz - turn the knob to minimum to turn off the HiPass filter.)
  • LowPass - sets the cut-off frequency of the lowpass filter, which comes before the saturation circuit in the signal path. (The range is from 1 kHz to 8 kHz - turn the knob to maximum to turn off the LowPass filter.)
  • Tone - controls the U78 Saturator's unique tone filter. (Lower settings produce darker sounds with more low frequency content; conversely, higher settings result in brighter, sparkling sounds.)
  • Mix - controls the dry and wet signal ratio. (The dry signal is delayed to match the wet signal path latency to prevent phasing issues.)



Discover the product features in Audified and 3rd party video tutorials and reviews.

U78 Saturator: Mixing Big Rock Drums
Andrei Martinez Agras
Audified U78 Saturator Explained
ADSR Music Production Tutorials
U78 Saturator - Product Showcase

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 10.11 - macOS 12
AAX 64b, AU 64b, VST2 64b, VST3 64b, Apple Silicon Compatible
Windows 7 - Windows 10
AAX 32b, AAX 64b, VST2 32b, VST2 64b, VST3 32b, VST3 64b

Customer Reviews

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