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Klanghelm.MJUC.variable-tube.comp.v1.1.WiN.x86.x64 [x.rObel] Crack

Klanghelm MJUC Variable-Tube Compressor Review

Klanghelm MJUC is a plugin that emulates the sound and behavior of various vintage tube compressors. It offers three different models, each with its own character and features. In this article, we will review the latest version of MJUC, v1.1, which is available for Windows and Mac in 32-bit and 64-bit formats.

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MJUC is the most effortful Klanghelm plugin to date. It took almost two years of extensive, dare I say "excessive", research and development. To create MJUC, Klanghelm researched and analyzed each and every variable-mu implementation they could get their hands on to get the best of tube compression into a single processor. Variable-mu is a technical term for a compression topology that uses tubes to vary the gain depending on the input signal level. This results in a very natural and musical compression character with low distortion and noise. However, not all variable-mu compressors are the same, as they differ in their circuit design, components, and controls. Therefore, MJUC offers three different models that capture the essence of each generation of tube compression.

The Models

MJUC has three models: Mk1, Mk2, and Mk3. Each model has its own dedicated signal path and control set. If desired, you can tweak the overall tone and saturation of each model with the unique TIMBRE and DRIVE knobs. DRIVE controls the load of the input and output transformers as well as the saturation of the tube gain stages, if applicable. The TIMBRE extends MJUC's use as a tone shaper. Here is a brief overview of each model:

  • Mk1 is based on the very early variable-mu designs from the 50s. It has a very simple signal path, where the compression happens directly in the audio path. It has a very natural compression character with very little distortion. The arrangement of four variable-mu stages adds to the incredibly dense and thick nature of Mk1. Mk1 is the most colored of MJUC's models.

  • Mk2 is built upon the more complex designs of the 175 and 176 from the early 1960s, the all-tube-predecessors of the classic 1176 FET compressor. It offers four ratios, a density switch, that enables a second variable-mu stage and reduces the program dependence of the attack and recovery timings to a minimum. Furthermore, it lets you activate the interstage transformer to reduce overall noise and distortion and making the compression more accentuated. Compared to Mk1, the second model is less Jazz and more Rock'n'Roll with enhanced generated harmonics and a more forward sounding character.

  • Mk3 is the least colored and most Hi-Fi-sounding model in MJUC. It is Klanghelm's modern interpretation of this compression topology. The only design idea derived from another modern famous variable-mu comp is, that it's circuitry is done entirely differential, making the unit very quiet and almost distortion-free. But the real special thing about this model is, that the actual compression is done by two different variable-mu stages, which kind of work against each other, one works feedforward, while the other in a feedback configuration. This allows for a very precise control over the attack and release curves and also gives this model a unique and intriguing tone.


MJUC is not only a faithful emulation of vintage tube compressors, but also a versatile tool for modern music production. It has some features that make it stand out from other plugins in its category:

  • MJUC is built with a new framework that brings a lot of new usability features such as GUI-resizing, AB-ing and a feature-rich platform independent preset browser with save/copy/paste/save-as-default functionality. Furthermore it's possible to tweak the knob behavior, enable tooltips, show/hide value labels and more. All these features will find their way to the existing Klanghelm plugins as soon as possible.

  • MJUC has a very low CPU usage, thanks to its highly optimized DSP code and the use of SSE2 instructions. It also supports oversampling up to 8x for even higher quality and aliasing-free operation.

  • MJUC has a very flexible sidechain functionality, allowing you to choose between internal and external sidechain sources, as well as applying filters and EQ to the sidechain signal. You can also use the sidechain signal as a key input for the TIMBRE control, creating dynamic tone shaping effects.

  • MJUC has a comprehensive metering section, showing the input, output, and gain reduction levels, as well as the compression curve and the transfer function. You can also switch between peak and RMS modes, as well as adjust the meter ballistics.


MJUC is a plugin that delivers the sound and feel of vintage tube compressors with a modern twist. It offers three distinct models that cover a wide range of musical styles and applications. It has a simple and intuitive interface, but also a lot of features and options to fine-tune your sound. It is very CPU-friendly and supports high-quality oversampling. It is also very affordable, costing only 24 at [Klanghelm's website]. If you are looking for a plugin that can add warmth, character, and glue to your mixes, MJUC is definitely worth checking out.


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